A.B.C.'s periodontics. "H" is for hormones.
Swenson
H M
HM
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005882:Gingival Diseases / Q000209:etiology*; D006728:Hormones / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D011247:Pregnancy
D006728:Hormones