Reasons for discontinuing insulin and factors associated with insulin discontinuation in patients with type 2 diabetes mellitus: a real-world evidence study oleh Jianmin Wu, Fritha Morrison, Zhenxiang Zhao, Ginger Haynes, Xuanyao He, Ayad K. Ali, Maria Shubina, Shervin Malmasi, Wendong Ge, Xiaomei Peng, Alexander Turchin