1. Perinatology Research Branch; NICHD/NIH/DHHS; Bethesda MD USA and Detroit MI USA
2. Department of Obstetrics & Gynecology; Wayne State University School of Medicine; Detroit MI USA
3. Department of Immunology, Microbiology & Biochemistry; Wayne State University School of Medicine; Detroit MI USA
4. Department of Obstetrics & Gynecology; University of Michigan; Ann Arbor MI USA
5. Department of Epidemiology & Biostatistics; Michigan State University; East Lansing MI USA
6. Center for Molecular Medicine & Genetics; Wayne State University; Detroit MI USA