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Lawrence N, Rietschel RL, Butcher RB 2nd.Lawrence N, et al. Among authors: butcher rb 2nd.Laryngoscope. 1990 Dec;100(12):1323-5. doi: 10.1288/00005537-199012000-00015.Laryngoscope. 1990.PMID: 2243527
Graham HD 3rd, Mentz HA 3rd, Butcher RB 2nd.Graham HD 3rd, et al. Among authors: butcher rb 2nd.J La State Med Soc. 1989 Jun;141(6):11-5.J La State Med Soc. 1989.PMID: 2659711Review.