By Karlsen, Kristine A.
By AAP - American Academy of Pediatrics
By Lewis, Richard, Gold, Daniel
By American Academy of Pediatrics, Seidel, James S, Knapp, Jane F
By ACOG Committee on Obstetric Practice, AAP Committee on Fetus and Newborn, Stark, Ann R., Riley, Laura E.
By Pickering, Larry K., Baker, Carol J., Mcmillan, Julia, Long, Sarah
By Kleinman, Ronald E.
By American Academy of Pediatrics, American Heart Association