'Dear Senator Humphrey...' what they write to the Minnesota statesman.
D000293:Adolescent; D000328:Adult; D002675:Child, Preschool; D005197:Famous Persons; D005260:Female; D006666:History of Medicine; D006801:Humans; D008297:Male; D008910:Minnesota; D009369:Neoplasms / Q000523:psychology*; D011057:Politics; D014481:United States