Mode of Ascertainment is Critical in Assessing Safety of Percutaneous Umbilical Blood
Sampling
Lee P. Shulman, Michael L. Moretti, Avirachan T. Tharapel, David C. Shaver, Brian M. Mercer, Baha M. Sibai, Carole M. Meyers, Owen P. Phillips, John V. Dacus, John R. Barton, Joe Leigh Simpson, Sherman Elias
Departments of Obstetrics and Gynecology and Pediatrics, the University of Tennessee,
Memphis, Memphis, Tennessee