J. NAN DAVIS
December 20, 2017
J. Nan Davis has been a quality assurance manager with Pharmaceutical Product Development, LLC, since 1992.
J. Nan Davis has been a quality assurance manager with Pharmaceutical Product Development, LLC, since 1992.
Marquis Who’s Who was established in 1898 and promptly began publishing biographical data in 1899. More than 120 years ago, our founder, Albert Nelson Marquis, established a standard of excellence with the first publication of Who’s Who in America.