Prognostic Nutritional Index as a Novel Predictor of Long-Term Prognosis in Patients with Coronary Artery Disease After Percutaneous Coronary Intervention oleh Tian-Ding Liu BS, Ying-Ying Zheng PhD, Jun-Nan Tang PhD, Wei Wang BS, Xin-Ya Dai BS, Jian-Chao Zhang BS, Qian-Qian Guo MS, Meng-Die Cheng BS, Feng-Hua Song BS, Lei Fan MS, Zhi-Yu Liu BS, Zeng-Lei Zhang BS, Yan Bai BS, Kai Wang BS, Xiao-Ting Yue BS, Ru-Jie Zheng BS, Jin-Ying Zhang MD, PhD