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Mathis CA, Bishop JE, Gerdes JM, Whitney JM, Brennan KM, Jagust WJ.Mathis CA, et al. Among authors: jagust wj.Int J Rad Appl Instrum B. 1992 Jul;19(5):571-88. doi: 10.1016/0883-2897(92)90153-p.Int J Rad Appl Instrum B. 1992.PMID: 1399687