Citação norma APA

Egger, M., Low, N., Smith, G. D., Lindblom, B., & Herrmann, B. (1998). Screening for chlamydial infections and the risk of ectopic pregnancy in a county in Sweden: Ecological analysis. British Medical Journal.

Citação norma Chicago

Egger, Matthias, Nicola Low, George Davey Smith, Bo Lindblom, and Björn Herrmann. Screening for Chlamydial Infections and the Risk of Ectopic Pregnancy in a County in Sweden: Ecological Analysis. British Medical Journal, 1998.

Citação norma MLA

Egger, Matthias, et al. Screening for Chlamydial Infections and the Risk of Ectopic Pregnancy in a County in Sweden: Ecological Analysis. British Medical Journal, 1998.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.