Evidence for a Secular Trend in Age of Menarche

Wyshak, GraceFrisch, Rose2015-07-021982Wyshak, Grace, and Rose E. Frisch. 1982. “Evidence for a Secular Trend in Age of Menarche.” N Engl J Med 306 (17) (April 29): 1033–1035. doi:10.1056/nejm198204293061707.0028-4793http://nrs.harvard.edu/urn-3:HUL.InstRepos:16953385en-USEvidence for a Secular Trend in Age of MenarcheJournal Article2015-07-0210.1056/NEJM198204293061707