@article{ref1,
title="A school-based exercise intervention elicits substantial bone health benefits: a 2-year randomized controlled trial in girls",
journal="Pediatrics",
year="2003",
author="McKay, Heather A. and Janssen, Patricia A. and Petit, M. A. and Khan, Karim M. and MacKelvie, Kerry J.",
volume="112",
number="6 Pt 1",
pages="e447-e447",
abstract="OBJECTIVE: Childhood weight-bearing physical activity is recognized as an important determinant of peak bone mass, and physical activity intervention may represent a feasible strategy for primary prevention of osteoporosis.",
language="",
issn="0031-4005",
doi="",
url="http://dx.doi.org/"
}