Group, E. S. (2006). Aspirin plus dipyridamole versus aspirin alone after cerebral ischaemia of arterial origin (ESPRIT): Randomised controlled trial. Lancet, 367(9523), 1665. https://doi.org/10.1016/s0140-6736(06)68734-5
Chicago Style (17th ed.) CitationGroup, ESPRIT Study. "Aspirin Plus Dipyridamole Versus Aspirin Alone After Cerebral Ischaemia of Arterial Origin (ESPRIT): Randomised Controlled Trial." Lancet 367, no. 9523 (2006): 1665. https://doi.org/10.1016/s0140-6736(06)68734-5.
MLA (9th ed.) CitationGroup, ESPRIT Study. "Aspirin Plus Dipyridamole Versus Aspirin Alone After Cerebral Ischaemia of Arterial Origin (ESPRIT): Randomised Controlled Trial." Lancet, vol. 367, no. 9523, 2006, p. 1665, https://doi.org/10.1016/s0140-6736(06)68734-5.