APA

Landy S. H., Tepper S. J., Schweizer E., Almas M. & Ramos E. (20141118). Outcome for headache and pain-free nonresponders to treatment of the first attack: a pooled post-hoc analysis of four randomized trials of eletriptan 40 mg. : Cephalalgia : an international journal of headache.

Chicago

Landy Steve H, Tepper Stewart J, Schweizer Edward, Almas Mary and Ramos Elodie. 20141118. Outcome for headache and pain-free nonresponders to treatment of the first attack: a pooled post-hoc analysis of four randomized trials of eletriptan 40 mg. : Cephalalgia : an international journal of headache.

Harvard

Landy S. H., Tepper S. J., Schweizer E., Almas M. and Ramos E. (20141118). Outcome for headache and pain-free nonresponders to treatment of the first attack: a pooled post-hoc analysis of four randomized trials of eletriptan 40 mg. : Cephalalgia : an international journal of headache.

MLA

Landy Steve H, Tepper Stewart J, Schweizer Edward, Almas Mary and Ramos Elodie. Outcome for headache and pain-free nonresponders to treatment of the first attack: a pooled post-hoc analysis of four randomized trials of eletriptan 40 mg. : Cephalalgia : an international journal of headache. 20141118.