APA citiranje

Ask-Upmark, E., & Bickerstaff, E. R. (1976). Vertebral artery occlusion and oral contraceptives.

Citação norma Chicago

Ask-Upmark, E., and E R. Bickerstaff. Vertebral Artery Occlusion and Oral Contraceptives. 1976.

MLA citiranje

Ask-Upmark, E., and E R. Bickerstaff. Vertebral Artery Occlusion and Oral Contraceptives. 1976.

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