A<unk>  (also retrodiagnosis or posthumous<unk>  is the practice of identifying an illness after the death of the patient (sometimes in a historical figure) using modern knowledge, methods and disease classifications. Alternatively, it can be the more general attempt to give a modern name to an ancient and ill-defined scourge or plague.
Retrospective diagnosis
Natural history group
Clinical study design
Real world data
Multiple baseline design
Clinical study report
Wait list control group
Analysis of clinical trials