Matrix and reservoir-type multipurpose vaginal rings for controlled release of dapivirine and levonorgestrel

Boyd P, Fetherston SM, McCoy CF, Major I, Murphy DJ, Kumar S, Holt J, Brimer A, Blanda W, Devlin B, Malcolm RK. International Journal of Pharmaceutics. 511, no. 1 (10 Sept 2016): 619-629.