By Kogan M.D.   in Maternal and Child Health Journal

ISSN:1092-7875|6|1|29-35

Springer Publishing Company ‎(2002)‎

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By Yu S.M.   Huang Z.J.   Schwalberg R.H.   Overpeck M.   Kogan M.D.   in Journal of Adolescent Health

ISSN:1054-139X|33|6|479-488

Elsevier‎(2003)‎

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