Are Nested Case-Control Studies Biased?

MLA

David B. Richardson, and Bryan Langholz. “Are Nested Case-Control Studies Biased?” Epidemiology, vol. 20, May 2009, pp. 321–29. EBSCOhost, https://doi.org/10.1097/ede.0b013e31819e370b.

APA

David B. Richardson, & Bryan Langholz. (2009). Are Nested Case-Control Studies Biased? Epidemiology, 20, 321–329. https://doi.org/10.1097/ede.0b013e31819e370b

Chicago

David B. Richardson, and Bryan Langholz. 2009. “Are Nested Case-Control Studies Biased?” Epidemiology 20 (May): 321–29. doi:10.1097/ede.0b013e31819e370b.