This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social science, Mental health & Genetics, Subject name: Social & Preventive Medicine
Alfred Grotjahn is famous for 
Select and explain. 
A. Epidemiology, B. Biostatistics, C. Vaccination, D. Social hygiene
D: Social hygiene
Answer: D: Social hygiene 
Explanation: In 1911, the concept of social medicine was revived by Alfred Grotjahn (1869-1931) of Berlin who stressed the impoance of social factors in the aetiology of disease, which he called "social pathology". Others called it geographical pathology and population pathology. Ref : Park 23rd edition Pgno : 8