Peritoneal paraquat injection were performed in paraquat group and ulinastatin group,while equal volume of saline was peritonealy injected in control group.

• 百草枯组和乌司他丁组腹腔内注射百草枯，对照组注射等体积无菌生理盐水，乌司他丁组同时给与乌司他丁治疗。