pyloric,ampulla

胃体; pylorus 是幽门,分为膨大的antrum窦和收缩的canal管; pyloric
出售boston scientific 5848 esophageal/pyloric/colonic wireguided
gastric versus postpyloric enteral nutrition in elderly patients
出售boston scientific 5848 esophageal/pyloric/colonic wireguided
出售boston scientific 5869 esophageal/pyloric/colonic/biliary