Choi, Myungsuk The Moderating Role of Social Activity on Age Norms and Subjective Health Status of Older Adults: A Two-Stage Cluster Korea National Survey. [electronic resource] - Osong public health and research perspectives Jun 2019 - 145-151 p. digital Publication Type: Journal Article ISSN: 2210-9099 Standard No.: 10.24171/j.phrp.2019.10.3.05 doi