<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="xsl/sitemap.xsl"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:news="http://www.google.com/schemas/sitemap-news/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"><url><loc>https://www.constantoyannis.com/en/diseases/brain-diseases/dbs</loc><lastmod>2025-12-12T11:55:44.845Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/dbs"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/dbs"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases/spasticity</loc><lastmod>2025-12-12T12:00:46.171Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/spasticity"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/spastikotita"/></url><url><loc>https://www.constantoyannis.com/en/diseases/brain-diseases/parkinson-s-disease</loc><lastmod>2025-12-15T10:04:38.998Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/parkinson-s-disease"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/nosos-parkinson"/></url><url><loc>https://www.constantoyannis.com/en/diseases/brain-diseases/trigeminal-neuralgia</loc><lastmod>2025-12-15T10:06:25.335Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/trigeminal-neuralgia"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/neyralgia-tridymoy"/></url><url><loc>https://www.constantoyannis.com/en/diseases/brain-diseases/tumour-incident</loc><lastmod>2025-12-15T10:07:33.082Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/tumour-incident"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/peristatiko-ogkoy"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases/traumatic-injuries</loc><lastmod>2025-12-15T10:08:25.389Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/traumatic-injuries"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/traymatikes-kakoseis"/></url><url><loc>https://www.constantoyannis.com/en/diseases/brain-diseases/chronic-pain</loc><lastmod>2025-12-15T10:08:55.222Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/chronic-pain"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/xronios-ponos"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases/cervical-myelopathy</loc><lastmod>2025-12-18T12:18:44.419Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/cervical-myelopathy"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/ayxeniki-myelopatheia"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases/osteoporosis</loc><lastmod>2025-12-18T12:19:17.229Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/osteoporosis"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/osteoporosi"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases/spinal-fusion</loc><lastmod>2025-12-18T12:19:21.284Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/spinal-fusion"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/spondylodesia"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases/herniated-disc</loc><lastmod>2025-12-18T12:54:29.721Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/herniated-disc"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/diskokili"/></url><url><loc>https://www.constantoyannis.com/en/diseases/brain-diseases/brain-tumours</loc><lastmod>2025-12-18T12:54:45.163Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/brain-tumours"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/ogkoi-egkefaloy"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases/discoplasty</loc><lastmod>2025-12-18T12:54:59.171Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/discoplasty"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/diskoplastiki"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/spastikotita</loc><lastmod>2025-12-12T11:50:40.361Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/spastikotita"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/spasticity"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/dbs</loc><lastmod>2025-12-12T11:55:29.179Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/dbs"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/dbs"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/nosos-parkinson</loc><lastmod>2025-12-15T10:04:26.369Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/nosos-parkinson"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/parkinson-s-disease"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/neyralgia-tridymoy</loc><lastmod>2025-12-15T10:06:12.153Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/neyralgia-tridymoy"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/trigeminal-neuralgia"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/ogkoi-egkefaloy</loc><lastmod>2025-12-15T10:06:38.828Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/ogkoi-egkefaloy"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/brain-tumours"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/peristatiko-ogkoy</loc><lastmod>2025-12-15T10:07:23.254Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/peristatiko-ogkoy"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/tumour-incident"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/traymatikes-kakoseis</loc><lastmod>2025-12-15T10:08:16.383Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/traymatikes-kakoseis"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/traumatic-injuries"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/xronios-ponos</loc><lastmod>2025-12-15T10:08:44.755Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy/xronios-ponos"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases/chronic-pain"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/ayxeniki-myelopatheia</loc><lastmod>2025-12-18T12:18:47.946Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/ayxeniki-myelopatheia"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/cervical-myelopathy"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/diskoplastiki</loc><lastmod>2025-12-18T12:18:54.065Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/diskoplastiki"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/discoplasty"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/osteoporosi</loc><lastmod>2025-12-18T12:18:58.644Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/osteoporosi"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/osteoporosis"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/spondylodesia</loc><lastmod>2025-12-18T12:19:10.507Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/spondylodesia"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/spinal-fusion"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/diskokili</loc><lastmod>2026-01-07T15:39:35.258Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis/diskokili"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases/herniated-disc"/></url><url><loc>https://www.constantoyannis.com/en/diseases/brain-diseases</loc><lastmod>2025-12-18T12:50:01.619Z</lastmod><changefreq>monthly</changefreq><priority>0.7</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy"/></url><url><loc>https://www.constantoyannis.com/en/diseases/spinal-column-diseases</loc><lastmod>2025-12-18T12:50:07.506Z</lastmod><changefreq>monthly</changefreq><priority>0.7</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-egkefaloy</loc><lastmod>2025-12-18T12:49:58.746Z</lastmod><changefreq>monthly</changefreq><priority>0.7</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-egkefaloy"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/brain-diseases"/></url><url><loc>https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis</loc><lastmod>2025-12-18T12:50:05.147Z</lastmod><changefreq>monthly</changefreq><priority>0.7</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/diseases/pathiseis-spondylikis-stilis"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/diseases/spinal-column-diseases"/></url><url><loc>https://www.constantoyannis.com/blog/spondyliki-stili</loc><lastmod>2025-12-18T12:48:55.518Z</lastmod><changefreq>monthly</changefreq><priority>0.7</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/blog/spondyliki-stili"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/blog/spine-column"/></url><url><loc>https://www.constantoyannis.com/en/blog/spine-column</loc><lastmod>2025-12-18T12:49:03.070Z</lastmod><changefreq>monthly</changefreq><priority>0.7</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/blog/spine-column"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/blog/spondyliki-stili"/></url><url><loc>https://www.constantoyannis.com/en/blog/spine-column/nosos-parkinson</loc><lastmod>2025-12-18T12:51:55.381Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/blog/spine-column/nosos-parkinson"/><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/blog/nosos-parkinson"/></url><url><loc>https://www.constantoyannis.com/blog/nosos-parkinson</loc><lastmod>2026-01-11T19:51:04.941Z</lastmod><changefreq>monthly</changefreq><priority>0.9</priority><xhtml:link rel="alternate" hreflang="el" href="https://www.constantoyannis.com/blog/nosos-parkinson"/><xhtml:link rel="alternate" hreflang="en" href="https://www.constantoyannis.com/en/blog/spine-column/nosos-parkinson"/></url><url><loc>https://www.constantoyannis.com/interviews</loc><changefreq>monthly</changefreq><priority>0.6</priority></url><url><loc>https://www.constantoyannis.com/en/resume</loc><changefreq>monthly</changefreq><priority>0.6</priority></url><url><loc>https://www.constantoyannis.com/en/interviews</loc><changefreq>monthly</changefreq><priority>0.6</priority></url><url><loc>https://www.constantoyannis.com/en/contact</loc><changefreq>yearly</changefreq><priority>0.8</priority></url><url><loc>https://www.constantoyannis.com/</loc><changefreq>monthly</changefreq><priority>0.5</priority></url><url><loc>https://www.constantoyannis.com/blog</loc><changefreq>monthly</changefreq><priority>0.8</priority></url><url><loc>https://www.constantoyannis.com/contact</loc><changefreq>yearly</changefreq><priority>0.8</priority></url><url><loc>https://www.constantoyannis.com/publications</loc><changefreq>yearly</changefreq><priority>0.6</priority></url><url><loc>https://www.constantoyannis.com/en</loc><changefreq>monthly</changefreq><priority>1.0</priority></url><url><loc>https://www.constantoyannis.com/en/blog</loc><changefreq>monthly</changefreq><priority>0.8</priority></url><url><loc>https://www.constantoyannis.com/resume</loc><changefreq>monthly</changefreq><priority>0.6</priority></url><url><loc>https://www.constantoyannis.com/en/publications</loc><changefreq>yearly</changefreq><priority>0.6</priority></url></urlset>