Holsclaw D S, Torcato B
Department of Pediatrics, Hahnemann School of Medicine, Allegheny University of the Health Sciences, Philadelphia, Pennsylvania 19102, USA.
Pediatr Pulmonol. 1997 Dec;24(6):438-43. doi: 10.1002/(sici)1099-0496(199712)24:6<438::aid-ppul9>3.0.co;2-c.