[Hormone substitution with testosterone gel].
D000287:Administration, Topical; D000367:Age Factors; D000368:Aged; D005782:Gels; D006801:Humans; D007006:Hypogonadism / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D013739:Testosterone / Q000008:administration & dosage*
D005782:Gels; D013739:Testosterone