Cita APA (7a ed.)
Vaira, D., Malfertheiner, P., Megraud, F., Axon, A. T., Deltenre, M., Hirschl, A. M., . . . Garcia, J. M. (1999). Diagnosis of Helicobacter pylori infection with a new non-invasive antigen-based assay. HpSA European study group. Lancet, 354(9172), 30-34.
Cita Chicago Style (17a ed.)
Vaira, Dino, et al. "Diagnosis of Helicobacter Pylori Infection with a New Non-invasive Antigen-based Assay. HpSA European Study Group." Lancet 354, no. 9172 (1999): 30-34.
Cita MLA (9a ed.)
Vaira, Dino, et al. "Diagnosis of Helicobacter Pylori Infection with a New Non-invasive Antigen-based Assay. HpSA European Study Group." Lancet, vol. 354, no. 9172, 1999, pp. 30-34.
Precaución: Estas citas no son 100% exactas.