Wei, F., Gaisa, M. M., D'Souza, G., Xia, N., Giuliano, A. R., Hawes, S. E., Gao, L., Cheng, S., Donà, M. G., Goldstone, S. E., Schim van der Loeff, M. F., Neukam, K., Meites, E., Poynten, I. M., Dai, J., Combes, J., Wieland, U., Burgos, J., Wilkin, T. J., Hernandez, A. L., Iribarren Díaz, M., Hidalgo-Tenorio, C., Valencia Arredondo, M., Nyitray, A. G., Wentzensen, N., Chow, E. P., Smelov, V., Nowak, R. G., Phanuphak, N., Woo, Y. L., Choi, Y., Hu, Y., Schofield, A. M., Woestenberg, P. J., Chikandiwa, A. T., Hickey, A. C., de Pokomandy, A., Murenzi, G., Péré, H., del Pino, M., Ortiz, A. P., Charnot-Katsikas, A., Liu, X., Chariyalertsak, S., Strong, C., Ong, J. J., Yunihastuti, E., Etienney, I., Ferré, V. M., Zou, H., Segondy, M., Chinyowa, S., Alberts, C. J., & Clifford, G. M. (2021). epidemiology of anal human papillomavirus infection and high-grade squamous intraepithelial lesions in 29 900 men according to HIV status, sexuality, and age: a collaborative pooled analysis of 64 studies. Lancet, 8(9), e531–e543. http://access.bl.uk/ark:/81055/vdc_100144484328.0x00001b