| 1. | Cross - sectional survey on low back pain in students majoring in traditional chinese sports
民族传统体育专业学生下腰痛的横断面调查 |
| 2. | A cross - sectional survey on prevalence and risk factors of stroke in nanhui county of shanghai
上海市南汇区脑卒中干预队列人群基线调查 |
| 3. | A cross - sectional survey on smoking behaviors and its influencing factors among adolescents in zhuhai
珠海市青少年吸烟行为现况及影响因素分析 |
| 4. | Design , setting , and participants multiprogram cross - sectional survey of internal medicine residents
设计、机构、参与者：内科住院医生多项目横断面调查。 |
| 5. | Cross - sectional survey of current prevalent status of schistosomiasis in different types of endemic areas in hunan province
湖南省不同类型血吸虫病流行区流行状况横断面调查 |
| 6. | Objectives : to evaluate associations of asthma prevalence with occupational exposures in a cross - sectional survey of health care professionals
目的：通过对卫生保健专业人才进行有代表性的调查，评估哮喘流行与职业暴露之间的关系。 |
