Horne, A. W., Vincent, K., Hewitt, C. A., Middleton, L. J., Koscielniak, M., Szubert, W., …GaPP2 collaborative. (2020). Gabapentin for chronic pelvic pain in women (GaPP2): a multicentre, randomised, double-blind, placebo-controlled trial. Lancet, 396(10255), 909-917. https://doi.org/10.1016/S0140-6736%2820%2931693-7