Multiple drug effect analyses with confidence intervals for the evaluation of interactions of combined antiviral agents against hepatitis B virus: R.F. Schinazi,1* B. E. Korba,2 M. Belen'kii,1 C. K Chu,3 and J. D. Gangemi.4 Dept. of Pediatrics, VA Medical Center/Emory University, Decatur, GA 30033;1 DMVI, Georgetown University, Rockville MD 20852,2 Dept. of Medicinal Chem., College of Pharmacy, University Georgia, Athens, GA 30602,3 and Greenville Hospital System, Clemson University, Clemson, SC 29634,4 USA