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Schofield MJ, Tripodi DA, Girgis A, Sanson-Fisher RW.Schofield MJ, et al.Aust J Public Health. 1991 Jun;15(2):135-41. doi: 10.1111/j.1753-6405.1991.tb00323.x.Aust J Public Health. 1991.PMID: 1912056