Methods 89 cases(107 teeth) were given replantation routineobservation and analysis of 1 to 5 years.
方法89例外伤性脱位牙患者（107颗牙）行常规再植术，观察1～5年并总结分析。
2
Her 1919 work, Household Engineering: Scientific Management in the Home, was based on detailed observation of a housewife's daily routine.
她1919年的著作《家庭工程：家庭科学管理》是基于对家庭主妇日常生活的详细观察而写成的。
3
Results The observation group 29 cases, 25 cases are independent of success, 4 cases through fiber with nasal endoscopy directly to duodenal or jejunal bowel, normal gastric tube routine.