Basis Single classification for all purposes Comprehensive
{"Image DocumentName": "Basis Single classification for all purposes Comprehensive", "Image ImageDescription": "Evidence-based as far as possible. Symptom-based for the primary headaches, aetiological for the secondary headaches. Unambiguous. terms such as sometimes, often, usually are avoided. Specificity weighted over sensitivity. Separate codes for probable cases. \u00a9International Headache Society 2003/5.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}