1. Systemic reactions to silver amalgam filling;Huggins,1984
2. Heavy metal and heavy metal antagonists;Klaassen,1985
3. Toxic metals and their analysis;Berman,1980
4. Clinical evaluation of posterior composite resins;Leinfelder;Gen Dent,1983
5. Evaluation of criteria used for assessing the clinical performance of composite resins in posterior teeth;Leinfelder;Quintessence Int,1987