the swallowing reflex was induced by bolus injections of a small amount of distilled water ( 0.5 ml ) into the pharynx at four different values of endexpiratory airway pressure ( 0,5,10 , and 15 cm h2o cpap ) or by continuous infusion of water ( 3 ml/min ) at two different values of endexpiratory airway pressure ( 0 and 15 cm h2o cpap ) .
C1163679
injections
C0043047
water