title: Hair loss.
mesh_terms: D000328:Adult; D000505:Alopecia / Q000175:diagnosis*; D000506:Alopecia Areata / Q000175:diagnosis; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006201:Hair Diseases / Q000175:diagnosis; D006801:Humans; D008297:Male; D014005:Tinea / Q000175:diagnosis; D014256:Trichotillomania / Q000175:diagnosis