title: Letter: Hanoi urology.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007669:Kidney Calculi / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011472:Prostatitis / Q000000981:diagnostic imaging; D011859:Radiography; D014572:Urology; D014744:Vietnam