Shoulder Dystocia with and without Brachial Plexus Injury: Experience from Three Centers - Chauhan, Suneet P; Cole, Jill; Laye, M Ryan; Choi, Ken; Sanderson, Maureen; Moore, R Clifton; Magann, Everett F; King, Holly L; Morrison, John C (American Journal of Perinatology, 2007)