Here is the CMT Uptime check phrase
PUBLICATIONS

Social Relations in the Third Age: Assessing Strengths and Challenges Using the Convoy Model

Antonucci, Toni C; Ajrouch, Kristine J; Birditt, Kira S. (2006). Social Relations in the Third Age: Assessing Strengths and Challenges Using the Convoy Model. Annual Review of Gerontology & Geriatrics. 26, 193-210.