A Comparison of Mobile Social Media Promotion and Volunteer-Driven Strategies for Community Organizations Recruiting Men Who Have Sex with Men for HIV Testing in Zhejiang Province, China: Cross-Sectional Study Based on a Large-Scale Survey. - He, Lin; Jiang, Shaoqiang; Jiang, Tingting; Chen, Wanjun; Zheng, Jinlei; Wang, Hui; Chai, Chengliang (Journal of Medical Internet Research, 2025)