Maintainer: ‘Paul R Rosenbaum <rosenbaum@wharton.upenn.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = c("Paul", "R"),
                    family = "Rosenbaum",
                    role = c("aut", "cre"),
                    email = "rosenbaum@wharton.upenn.edu")
as necessary.
Maintainer: ‘Paul R Rosenbaum <rosenbaum@wharton.upenn.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = c("Paul", "R"),
                    family = "Rosenbaum",
                    role = c("aut", "cre"),
                    email = "rosenbaum@wharton.upenn.edu")
as necessary.