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Koopman A, Vendrik CP, Sleyfer DT, van Oosterom AT, ten Bokkel Huinink WW, Stoter G.Koopman A, et al. Among authors: vendrik cp.Ned Tijdschr Geneeskd. 1990 Jan 6;134(1):23-5.Ned Tijdschr Geneeskd. 1990.PMID: 1688648Dutch.
Kaye SB, Bokkel-Huinink WW, van Oosterom AT, Jones WG, Sleijfer DT, Vendrik CP, Stoter G.Kaye SB, et al. Among authors: vendrik cp.Aust N Z J Surg. 1985 Jun;55(3):239-41. doi: 10.1111/j.1445-2197.1985.tb00080.x.Aust N Z J Surg. 1985.PMID: 2413835Clinical Trial.