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Campbell DJ, Lawrence AC, Towrie A, Kladis A, Valentijn AJ.Campbell DJ, et al.Hypertension. 1991 Dec;18(6):763-73. doi: 10.1161/01.hyp.18.6.763.Hypertension. 1991.PMID: 1660448
Lawrence AC, Evin G, Kladis A, Campbell DJ.Lawrence AC, et al. Among authors: campbell dj.J Hypertens. 1990 Aug;8(8):715-24. doi: 10.1097/00004872-199008000-00005.J Hypertens. 1990.PMID: 2170511