先天性肥大性幽门狭窄(Hypertrophic pyloric stenosis)系幽门的环行肌肥厚所致幽门管腔狭窄而发生的上消化道不全梗阻，为小婴儿最......

胃食道反流症(Gastroesopliageal Reflux,简写GEF)又名贲门松弛症(Chalasia),贲门食道松弛症(Cardio-esophageal relaxafion)~(1-......