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Ringleberg ML, Conti AJ, Webster DB.Ringleberg ML, et al. Among authors: webster db.J Public Health Dent. 1976 Fall;36(4):229-36. doi: 10.1111/j.1752-7325.1976.tb02610.x.J Public Health Dent. 1976.PMID: 1067428
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Clark BJ, Graves RC, Webster DB, Triol CW.Clark BJ, et al. Among authors: webster db.J Public Health Dent. 1987 Summer;47(3):134-8. doi: 10.1111/j.1752-7325.1987.tb01990.x.J Public Health Dent. 1987.PMID: 3475468
Webster DB Jr, Ringelberg ML.Webster DB Jr, et al.J Am Soc Prev Dent. 1977 Mar-Apr;7(2):27-9.J Am Soc Prev Dent. 1977.PMID: 267051No abstract available.