Credit: E. Holland Durando/Washington University
Barbara Warner, MD, (left) and nurse Laura Linneman, a clinical research coordinator, check on Skylar Angel in the neonatal intensive care unit (NICU) at St. Louis Children's Hospital. Skylar and her twin, Bayley, were born prematurely. Warner is co-first author of a Washington University School of Medicine study reporting that the population of bacteria in the intestinal tracts of premature infants may depend more on the babies' biological makeup and gestational age at birth than on environmental factors.