Age at menarche in Flemish girls: current status and secular change in the 20th century

Author: Wellens Rita   Malina Robert   Beunen Gaston   Lefevre Johan  

Publisher: Informa Healthcare

ISSN: 1464-5033

Source: Annals of Human Biology, Vol.17, Iss.2, 1990-04, pp. : 145-152

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Abstract