@article{doi:10.1001/archpediatrics.2009.261,
author = {Susman EJ and Houts RM and Steinberg L and et al},
title = {LOngitudinal development of secondary sexual characteristics in girls and boys between ages 9½ and 15½ years},
journal = {Archives of Pediatrics & Adolescent Medicine},
volume = {164},
number = {2},
pages = {166-173},
year = {2010},
doi = {10.1001/archpediatrics.2009.261},
URL = { + http://dx.doi.org/10.1001/archpediatrics.2009.261},
eprint = {/data/Journals/PEDS/5184/poa90072_166_173.pdf}
}