名词解释1.incidence2.prevalence3.attackrate4.prevalenceof infection5.secondaryattack rate6.casefatality rate7.mortalityrate8.survivalrate9.petentialyears of life lost10.sporadie11.outbreak1 ...
名词解释1. case control studies2. matching3. admission rate bias4. over-matching5. odds ratio6. detection signal bias7. time effect bias8. confoundingbias填空题1.控制混杂因素的常用的方 ...
名词解释1. cause of disease2. sufficient cause3. method of agreement4. method of difference5. joint method of agreement and difference6. method of concomitant variation7. method of resid ...