Dept. of Digestive Medicine, Second Hospital, Jilin University,;
Dept. of Digestive Medicine, Second Hospital, Jilin University,;
Dept. of Digestive Medicine, Second Hospital, Jilin University,;
Dept. of Digestive Medicine, Second Hospital, Jilin University,;
Dept. of Digestive Medicine, Second Hospital, Jilin University,;
Dept. of Digestive Medicine, Second Hospital, Jilin University,;