The writing on the wall.

MLA

Wilder-Smith EP, and Ng ES. “The Writing on the Wall.” Lancet, vol. 372, no. 9635, July 2008, p. 344. EBSCOhost, https://doi.org/10.1016/s0140-6736(08)61120-4.

APA

Wilder-Smith EP, & Ng ES. (2008). The writing on the wall. Lancet, 372(9635), 344. https://doi.org/10.1016/s0140-6736(08)61120-4

Chicago

Wilder-Smith EP, and Ng ES. 2008. “The Writing on the Wall.” Lancet 372 (9635): 344. doi:10.1016/s0140-6736(08)61120-4.