Needle-free, Novel Fossa Ovalis Puncture with Percutaneous Transluminal Coronary Angioplasty Guidewire and Microcatheter in Pigs and a Human with an Extremely Tortuous Inferior Ven... oleh Guang-Xia Wang, Hong Luo, Feng-Peng Jia, Run-Tu Li, Quan He, Chun-Chang Qin