https://www.medweb.gr/2016/11/23/%ce%bd%cf%8c%cf%83%ce%bf%cf%82-crohn-%cf%86%ce%bb%ce%b5%ce%b3%ce%bc%ce%bf%ce%bd%cf%8e%ce%b4%ce%b7%cf%82-%ce%bd%cf%8c%cf%83%ce%bf%cf%82-%cf%84%ce%bf%cf%85-%ce%b5%ce%bd%cf%84%ce%ad%cf%81%ce%bf%cf%85/