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Rice WG, Schaeffer CA, Graham L, Bu M, McDougal JS, Orloff SL, Villinger F, Young M, Oroszlan S, Fesen MR, et al.Rice WG, et al. Among authors: orloff sl.Proc Natl Acad Sci U S A. 1993 Oct 15;90(20):9721-4. doi: 10.1073/pnas.90.20.9721.Proc Natl Acad Sci U S A. 1993.PMID: 7692451Free PMC article.