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by American Academy of Pediatrics Section on Adolescent Health; Miller, Elizabeth; Sigel, Eric
by Brownson, Ross C.; Baker, Elizabeth A.; Novick, Lloyd F.
by United States General Accounting Office Gao
by McLean, David; Williams, Dan; Lamont, Sonia; et al.
by James McGuire; Emily Evans; Eddie Kane
by Unknown
by Mathéy, Kosta; Matuk, Silvia
by Robert J. Stokes; Charlotte Gill
by Stokes, Robert; Gill, Charlotte
by Wilson, Jeremy M.