Authors: Yali A Bair; Ellen B Gold; Gail A Greendale; Barbara Sternfeld; Shelley R Adler; Rahman Azari; Martha Harkey Journal: Am J Public Health Date: 2002-11 Impact factor: 9.308
Authors: Robert E Graham; Andrew C Ahn; Roger B Davis; Bonnie B O'Connor; David M Eisenberg; Russell S Phillips Journal: J Natl Med Assoc Date: 2005-04 Impact factor: 1.798