@article{doi:10.1001/archpediatrics.2011.1658,
author = {van der Aa N and Bartels M and te Velde SJ and Boomsma DI and de Geus EC and Brug J},
title = {Genetic and environmental influences on individual differences in sedentary behavior during adolescence: A twin-family study},
journal = {Archives of Pediatrics & Adolescent Medicine},
volume = {166},
number = {6},
pages = {509-514},
year = {2012},
doi = {10.1001/archpediatrics.2011.1658},
URL = { + http://dx.doi.org/10.1001/archpediatrics.2011.1658},
eprint = {/data/Journals/PEDS/23650/poa110056_509_514.pdf}
}