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  • Article May 01, 1975

    Aaron Lechtig, MD, MPH; Hernan Delgado, MD, MPH; Robert Lasky, PhD; Charles Yarbrough, PhD; Robert E. Klein, PhD; Jean-Pierre Habicht, MD, PhD; Moisés Béhar, MD

    Am J Dis Child. 1975; 129(5):553-556. doi: 10.1001/archpedi.1975.02120420009003