A comparative study of risk of pneumonia and mortalities between nasogastric and jejunostomy feeding routes in surgical critically ill patients with perforated peptic ulcer. oleh Shih-Chi Wu, Peiling Hsieh, Yi-Wen Chen, Mei-Due Yang, Yu-Chun Wang, Han-Tsung Cheng, Chia-Wei Tzeng, Chia-Hao Hsu, Chih-Hsin Muo