@inproceedings{inproceedingsda0f6813,
title   = {Age at menarche (AM) of Brazilian girls: socioeconomic factors and regional differences},
author = {Pianco, M. R. A. and Barbieri, Marco Antonio and Barbosa, J. G. and Bettiol, Heloisa},
year = {1997},
booktitle   = {International Congress of Auxology}
}