机构:
Penn State Univ, Dept Human Dev & Family Studies, University Pk, PA 16802 USAPenn State Univ, Dept Human Dev & Family Studies, University Pk, PA 16802 USA
机构:
Univ Michigan, Inst Gerontol, Ann Arbor, MI 48109 USA
Vet Affairs Ann Arbor Healthcare Syst, Hlth Syst Res, Ann Arbor, MI USA
Vet Affairs Ann Arbor Healthcare Syst, Ctr Geriatr Res Educ & Clin, Ann Arbor, MI USAWilfrid Laurier Univ, Dept Kinesiol & Phys Educ, Waterloo, ON N2L 3C5, Canada