4Lisa. Three types of MOOC [ EB/OL]. http://ditresearch- methods, wordpress, com/2013/03/27/three-types-of-mooc, 2013-12-12.
5Arvidsson S,Bergman S,Arvidsson B,et al.Effects of a self-care promoting problem-based learning programme in people with rheumatic diseases:a randomized controlled study[J].J Adv Nurs,2013,69(7):1500-1514.