Characteristics of selected longitudinal studies in a meta-analysis of education level and chronic periodontitis.
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资源简介：
CAL: Clinical Attachment Loss; CPITN: Community Periodontal Index of Treatment Needs; CS: Cross-Sectional; L: Longitudinal; PPD: Periodontal Pocket Depth; t0: Baseline data; Un: unknown.
创建时间：
2011-07-21
