Lu Christine Y, Stewart Christine, Ahmed Ameena T, Ahmedani Brian K, Coleman Karen, Copeland Laurel A, Hunkeler Enid M, Lakoma Matthew D, Madden Jeanne M, Penfold Robert B, Rusinak Donna, Zhang Fang, Soumerai Stephen B
Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
Pharmacoepidemiol Drug Saf. 2014 Feb;23(2):218-20. doi: 10.1002/pds.3551.