ALISON H CHANGSong J.Lee J.Chang R.W.Semanik P.A.Dunlop D.D.2020-06-262020-06-2620201063-4584https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082851646&doi=10.1016%2fj.joca.2020.03.007&partnerID=40&md5=124dcc4848ba5704511444a60ede00cbhttps://scholars.lib.ntu.edu.tw/handle/123456789/504949Proportion and associated factors of meeting the 2018 Physical Activity Guidelines for Americans in adults with or at risk for knee osteoarthritisconference paper10.1016/j.joca.2020.03.007322000502-s2.0-85082851646