Have the onset and tempo of puberty changed?
Reiter
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EO
Lee
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PA
D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D012739:Gonadal Steroid Hormones / Q000097:blood; D006306:Health Surveys; D006801:Humans; D008297:Male; D011627:Puberty / Q000502:physiology*; D012016:Reference Values; D012741:Sexual Maturation / Q000502:physiology*; D014481:United States
D012739:Gonadal Steroid Hormones