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McDonald MM, Koops BL, Johnson ML, Guggenheim MA, Rumack CM, Mitchell SA, Hathaway WE.McDonald MM, et al. Among authors: koops bl.Pediatrics. 1984 Jul;74(1):32-6.Pediatrics. 1984.PMID: 6739217
McDonald MM, Johnson ML, Rumack CM, Koops BL, Guggenheim MA, Babb C, Hathaway WE.McDonald MM, et al. Among authors: koops bl.Pediatrics. 1984 Jul;74(1):26-31.Pediatrics. 1984.PMID: 6739216