https://users.stat.ufl.edu/~aa/cda/R/one-sample/R1/index.html
Agresti A, Coull BA. Approximate is better than "exact" for
interval estimation of binomial proportions. Am Stat 1998;52:119-126.
tools:::Rd_expr_doi("10.2307/2685469")
Brown LD, Cai TT, DasGupta A. Interval estimation for a
binomial proportion (with discussion). Stat Sci 2001;16:101-133.
tools:::Rd_expr_doi("10.1214/ss/1009213286")