TY - GEN AU - Blackwell,Sean C AU - Saade,George R TI - Practical approaches to controversies in obstetric care. Preface SN - 1558-0474 PY - 2011///0915 KW - Diagnostic Techniques, Obstetrical and Gynecological KW - Female KW - Humans KW - Pregnancy N1 - Publication Type: Introductory Journal Article UR - https://doi.org/10.1016/j.ogc.2011.04.001 ER -