Fujiie, Keiko, Kobayashi Dental Clinic, Kanki, Higashikanki-Cho, Kakogawa, Hyogo 675-0057, Japan, Japan
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International Journal of Statistics in Medical Research Vol. 4 No. 4 (2015) - General Articles
A Natural Experiment for Inferring Causal Association between Smoking and Tooth Loss: A Study of a Workplace Contemporary Cohort
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