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Journal of Periodontology|February 1, 1976
A comparative study of ultrasonic generators and hand instrumentsS J Ewen, I W Scopp, R T Witkin, et al.
Journal of Periodontology|May 1, 1976
Osseous autografts. III. Comparison of osseous coagulum-bone blend implants with open curetageS J Froum, M Ortiz, R T Witkin, et al.
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