[1] School of Medicine,Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women’s Health
[2] Food and Natural Resources,Division of Animal Sciences, College of Agriculture
[3] The University of Missouri,Department of Health Management and Informatics, School of Medicine
[4] The University of Missouri,Department of Statistics, College of Arts and Sciences
[5] Biostatistics and Research Design,undefined