These data were collected with convenience sampling method from 75 hemolymph neoplasm patients and 75 general patients ( control group ) 以75位血液肿瘤患者为研究对象; 75位一般住院患者为对照组。
2.
Material : convenience sampling was employed to collect questionnaire samples from 400 individuals who were interviewed from the patients of one particular dental clinic in tainan city 材料:以台南市某牙科诊所病患为研究对象,计400人,采问卷调查法以便利抽样方式进行。