During the past several years, there has been an extensive reappraisal of the physiologic changes of pregnancy and their associated disorders, along with a refinement of diagnostic procedures and evaluation of the therapeutic approaches that are of primary concern to the physician. In Shoulder Dystocia and Birth Injury: Prevention and Treatment, Third Edition, noted authority James A. O Leary, M.D., with 40 years experience as an M.D. academician, lecturer, practitioner and clinical researcher with almost 200 contributions to the OB-GYN literature and textbooks, shares his insight...