巢式病例对照研究 meaning in English

nested case-control study

Nested case - control study on the risk factors of colorectal cancer
结肠癌和直肠癌危险因素的巢式病例对照研究
Nested case - control study on risk factors of isolated systolic hypertension in rural communities
农村社区单纯收缩性高血压危险因素的巢式病例对照研究
A nested case - control study on relations between risk of stroke and cerebrovascular hemodynamic indexes as well as other risk factors
脑血液动力学指标和卒中危险因素与卒中患病风险的巢式病例对照研究