1.
Plummer M, Carstensen B. Lexis: An R Class for Epidemiological Studies with Long-Term Follow-Up. J. Stat. Soft. [Internet]. 2011 Jan. 4 [cited 2024 Nov. 21];38(5):1-12. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v038i05