Health and risk behaviors of urban adolescent males involved in pregnancy [0.03%]
参与怀孕的城市男性青少年的健康和风险行为
M D Resnick,S A Chambliss,R W Blum
M D Resnick
J Jaccard,P Dittus
J Jaccard
L Stenberg,L Blinn
L Stenberg