共 50 条
- [34] CARIES EPIDEMIOLOGIC METHODS - A CRITICAL SURVEY DEUTSCHE ZAHNARZTLICHE ZEITSCHRIFT, 1985, 40 (04): : 372 - 381
- [38] AN INTRODUCTION TO EPIDEMIOLOGIC METHODS - KAHN,HA CANADIAN JOURNAL OF PUBLIC HEALTH-REVUE CANADIENNE DE SANTE PUBLIQUE, 1984, 75 (03): : 251 - 251