1. Division of Maternal-Fetal Medicine & Perinatal Research; Department of Obstetrics & Gynecology; The University of Texas Medical Branch at Galveston; Galveston Texas
2. Department of Neuroscience & Cell Biology; The University of Texas Medical Branch at Galveston; Galveston Texas
3. Department of Pathology; Botucatu Medical School; São Paulo State University (UNESP); Botucatu Brazil
4. Department of Gynecology and Obstetrics; Nanfang Hospital; Southern Medical University; Guangzhou China