Style de citation APA

(2002). Butterbur is as effective as cetirizine for hay fever. BMJ.

Style de citation Chicago

Butterbur Is As Effective As Cetirizine for Hay Fever. BMJ, 2002.

Style de citation MLA

Butterbur Is As Effective As Cetirizine for Hay Fever. BMJ, 2002.

Attention : ces citations peuvent ne pas être correctes à 100%.