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Farid N, Anderson J.Farid N, et al.Lancet. 1971 May 15;1(7707):1022-3. doi: 10.1016/s0140-6736(71)91421-8.Lancet. 1971.PMID: 4102438No abstract available.
Farid NR, Martin A, Anderson J.Farid NR, et al.Lancet. 1973 Dec 1;2(7840):1270. doi: 10.1016/s0140-6736(73)91016-7.Lancet. 1973.PMID: 4128601No abstract available.