Clinical Features of Primary Pulmonary Artery Sarcoma: A Systematic Review and Pooled Analysis Fumihiro Kashizaki; Hao Chen; Nanami Tsuchiya; Sachiko Matsumoto; Reeko Osada; Atsushi Miyasaka; Mai Kaneko; Akitomo Kikuchi; Yui Kojima; Kentaro Yumoto; Naoki Hashiyama; Hiroyuki Osawa; Harumi Koizumi; Makoto Mo; Kenichi Takahashi; Takeshi Kaneko;