TY - GEN AU - Barbera,A F AU - Hobbins,J C TI - Re: a question of angle of view SN - 1469-0705 PY - 2010///0826 KW - Female KW - Head KW - diagnostic imaging KW - Humans KW - Labor, Obstetric KW - physiology KW - Pregnancy KW - Ultrasonography N1 - Publication Type: Journal Article; Comment UR - https://doi.org/10.1002/uog.7475 ER -