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O'Sullivan DM, Tinanoff N.O'Sullivan DM, et al.J Public Health Dent. 1996 Spring;56(2):81-3. doi: 10.1111/j.1752-7325.1996.tb02401.x.J Public Health Dent. 1996.PMID: 8863291
Douglass JM, O'Sullivan DM, Tinanoff N.Douglass JM, et al.J Public Health Dent. 1996 Summer;56(4):171-5. doi: 10.1111/j.1752-7325.1996.tb02432.x.J Public Health Dent. 1996.PMID: 8906699