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Penn RD, Savoy SM, Corcos D, Latash M, Gottlieb G, Parke B, Kroin JS.Penn RD, et al. Among authors: kroin js.N Engl J Med. 1989 Jun 8;320(23):1517-21. doi: 10.1056/NEJM198906083202303.N Engl J Med. 1989.PMID: 2657424Clinical Trial.
Penn RD, Kroin JS.Penn RD, et al. Among authors: kroin js.Lancet. 1984 May 12;1(8385):1078. doi: 10.1016/s0140-6736(84)91487-9.Lancet. 1984.PMID: 6144008No abstract available.
Penn RD, Kroin JS, Reinkensmeyer A, Corcos DM.Penn RD, et al. Among authors: kroin js.Lancet. 1998 Jan 31;351(9099):340-1. doi: 10.1016/S0140-6736(05)78336-7.Lancet. 1998.PMID: 9652621No abstract available.