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A Parent's Complete Guide to Adolescent Health.

About the Author:Andrea Marks, M.D., a specialist in adolescent medicine, directed academic programs before opening a private practice for patients ages 9 to 30. She is on the faculty of The Mount Sinai School of Medicine, and also writes a monthly column, "Ask Dr. Marks," for Cosmo Girl magazine. Dr. Marks will be President of the Society for Adolescent Medicine in 2004.