Clinical picture: eyelid oedema and headache.

MLA

Sparing R, et al. “Clinical Picture: Eyelid Oedema and Headache.” Lancet, vol. 364, no. 9443, Oct. 2004, p. 1438. EBSCOhost, https://doi.org/10.1016/s0140-6736(04)17227-9.

APA

Sparing R, Kosinski CM, Krings T, & Schiefer J. (2004). Clinical picture: eyelid oedema and headache. Lancet, 364(9443), 1438. https://doi.org/10.1016/s0140-6736(04)17227-9

Chicago

Sparing R, Kosinski CM, Krings T, and Schiefer J. 2004. “Clinical Picture: Eyelid Oedema and Headache.” Lancet 364 (9443): 1438. doi:10.1016/s0140-6736(04)17227-9.