Main: Zeng, D., L. Mao, and D. Y. Lin. 2016. Maximum likelihood estimation for semiparametric transformation models with interval-censored data. Biometrika 103: 253-271. https://doi.org/10.1093/biomet/asw013.
Original source: Vanichseni, S., D. Kitayaporn, T. Mastro, P. A. Mock, Philip, S. Raktham, D. C. D. Jarlais, S. Sujarita, L. Srisuwanvilai, N. Young, C. Wasi, S. Subbarao, W. L. Heyward, J. Esparza, K. Choopanya. 2001. Continued high HIV-1 incidence in a vaccine trial preparatory cohort of injection drug users in Bangkok, Thailand. AIDS 15: 397-405.
Also see: Hudgens, M. G., G. A. Satten, and I. M. Longini, Jr. 2001. Nonparametric maximum likelihood estimation for competing risks survival data subject to interval censoring and truncation. Biometrics 57: 74-80. https://doi.org/10.1111/j.0006-341X.2001.00074.x.