Impact of the WellCheck smartphone app linked to electronic health records on clinical outcomes in patients with type 2 diabetes: Study protocol for primary care-based, prospective, multicenter, cluster-randomized, pragmatic clinical trials - Hyunji Sang; Sunyoung Kim; Jiyoung Hwang; Selin Woo; Yerin Hwang; Jaewon Kim; Seohei Lee; Dong Keon Yon; Sang Youl Rhee (PLoS ONE, 2025)