Development and Implementation of Couple-Based Collaborative Management Model of Type 2 Diabetes Mellitus for Community-Dwelling Chinese Older Adults: A Pilot Randomized Trial oleh Yuyang Liu, Yuyang Liu, Xiaocun Xiao, Chaonan Peng, Tianyi Zhao, Yanjuan Wu, Yanjuan Wu, Wanwen Yu, Liping Ou, Xiongfei Chen, Xueji Wu, Dong Roman Xu, Jing Liao, Jing Liao