Search results for: Yan Cheng
BMC Public Health > 2017 > 17 > 3 > 41-50
Journal of Adolescent Health > 2016 > 59 > 6 > 696-702
Journal of Adolescent Health > 2012 > 50 > 3 Supplement > S12-S17
Journal of Adolescent Health > 2008 > 42 > 2 > 184-191