DESIGN: Observationstudy on healthy individuals of Han nationality.
设计：以健康汉族人为观察对象的观察性实验。
2
Classroom observationstudy shows that implementation of success education is very significant in the chemical basis of professional vocational course.
课堂观察研究表明，在高职化工专业基础课教学中实施成功教育任重而道远。
3
DESIGN: Comparative observationstudy with RD children as subjects and normal children as control SETTING: Nuclear medicine and psychological health institute of a university.