1. Department of Medicine (L.A.B., B.D.), Denver, Colorado 80262
2. Departments of Obstetrics and Gynecology (L.A.B.), Denver, Colorado 80262
3. Department of Pediatrics (J.S., L.Q., M.A., J.E.F.), Denver, Colorado 80262
4. University of Colorado Health Sciences Center, and Research Service of the Denver Veterans Affairs Medical Center (W.L., B.D.), Denver, Colorado 80262