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Sack DA, Kaminsky DC, Sack RB, Wamola IA, Orskov F, Orskov I, Slack RC, Arthur RR, Kapikian AZ.Sack DA, et al. Among authors: sack rb.Johns Hopkins Med J. 1977 Aug;141(2):63-70.Johns Hopkins Med J. 1977.PMID: 196131
Orskov F, Orskov I, Evans DJ Jr, Sack RB, Sack DA, Wadström T.Orskov F, et al. Among authors: sack da, sack rb.Med Microbiol Immunol. 1976 Jun 1;162(2):73-80. doi: 10.1007/BF02121318.Med Microbiol Immunol. 1976.PMID: 778571
Sack DA, Merson MH, Wells JG, Sack RB, Morris GK.Sack DA, et al. Among authors: sack rb.Lancet. 1975 Aug 9;2(7928):239-41. doi: 10.1016/s0140-6736(75)90958-7.Lancet. 1975.PMID: 49793