TY - GEN AU - van den Brink,A AU - Stoutenbeek,Ph TI - Quantification of fetal swallowing by ultrasound is impossible SN - 0960-7692 PY - 2007///1002 KW - Deglutition KW - physiology KW - Female KW - Fetus KW - Humans KW - Infant, Newborn KW - Male KW - Pregnancy KW - Prospective Studies KW - Ultrasonography, Prenatal N1 - Publication Type: Letter UR - https://doi.org/10.1002/uog.3851 ER -