Pregnancy Prevention in Adolescents
SAWSAN AS-SANIE, M.D., M.P.H., ANGELA GANTT, M.D., M.P.H., and MARJORIE S. ROSENTHAL, M.D., University of North Carolina School of Medicine, Chapel Hill, North Carolina
http://www.aafp.org/afp/2004/1015/p1517.html
Am Fam Physician. 2004 Oct 15;70(8):1517-1524