PeerJ Author 100 Points Contributions by role Author 100 Contributions by subject area Epidemiology Geriatrics Public Health Yangyang Liu PeerJ Author Summary Past or current institution affiliations Okayama University PeerJ Contributions Articles 1 November 29, 2019 Combined effects of body mass index and unhealthy behaviors on disability in older Japanese adults: the Okayama study Yangyang Liu, Toshiharu Mitsuhashi, Michiyo Yamakawa, Megumi Sasai, Toshihide Tsuda, Hiroyuki Doi, Jun Hamada https://doi.org/10.7717/peerj.8146 PubMed 31803538