Youth engagement and social innovation in health in low-and-middle-income countries: Analysis of a global youth crowdsourcing open call. oleh Rayner Kay Jin Tan, Wenjie Shan, Eleanor Hummel, Joseph Deji, Yusuf Babatunde, Ronald Mirondo Waiswa, Ying Zhang, Yusha Tao, Weiming Tang, Meredith Del Pilar-Labarda, Beatrice Halpaap, Joseph D Tucker