Liu, A., Li, Q., Liu, C., Yu, K. F., & Yuan, V. W. (2010). A threshold sample-enrichment approach in a clinical trial with heterogeneous subpopulations.
استشهاد بنمط شيكاغوLiu, Aiyi, Qizhai Li, Chunling Liu, Kai F. Yu, و Vivian W. Yuan. A Threshold Sample-enrichment Approach in a Clinical Trial With Heterogeneous Subpopulations. 2010.
MLA استشهادLiu, Aiyi, et al. A Threshold Sample-enrichment Approach in a Clinical Trial With Heterogeneous Subpopulations. 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.