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Ford GC, Cheng KN, Halliday D.Ford GC, et al. Among authors: cheng kn.Biomed Mass Spectrom. 1985 Aug;12(8):432-6. doi: 10.1002/bms.1200120814.Biomed Mass Spectrom. 1985.PMID: 2931135
Wootton R, Ford GC, Cheng KN, Halliday D.Wootton R, et al. Among authors: cheng kn.Phys Med Biol. 1985 Oct;30(10):1143-9. doi: 10.1088/0031-9155/30/10/013.Phys Med Biol. 1985.PMID: 4070370