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3. Weight, length, head and chest circumference at birth in Phoenix, Arizona;Britton;J Reprod Med,1993
4. Alae nasi activation (nasal flaring) decreases nasal resistance in preterm infants;Carlo;Pediatrics,1983
5. Oxygen and carbon dioxide tensions, breathing and heart rate in normal infants during the first six months of life;Carse;J Dev Physiol,1981