Department of Pediatrics;
University of Texas Medical Branch;
Galveston;
TX 77555;
United States;
2Department of Endocrinology;
University of Texas Medical Branch;
Galveston;
TX 77555;
United States;
Department of Internal Medicine;
University of Texas Medical Branch;
Galveston;
TX 77555;
United States;
Department of Neonatology;
University of Texas Medical Branch;
Galveston;
TX 77555;
United States;
Amniotic; Fluid; Gastrointestinal; Factors; Tract; Trophic; Development;