The Hachinski ischemic score (HIS) is known to be a simple clinical tool, currently used for differentiating major types of dementia, such as primary degenerative, vascular or multi-infarct, and mixed type.
Alarcon-Segovia Diagnostic Criteria for Mixed Connective Tissue Disease (MCTD)
1. Serological criteria: Positive anti U1 RNP at haemagglutination titer >1:1600
2. Clinical criteria: