Lower left ventricular ejection fraction and higher serum angiotensin-converting enzyme activity are associated with histopathological diagnosis by endomyocardial biopsy in patients with cardiac sarcoidosis

Hirokazu Komoriyama, Kazunori Omote, Toshiyuki Nagai, Yoshiya Kato, Nobutaka Nagano, Kazuhiro Koyanagawa, Kiwamu Kamiya, Takao Konishi, Takuma Sato, Yuta Kobayashi, Shingo Tsujinaga, Hiroyuki Iwano, Kengo Kusano, Satoshi Yasuda, Hisao Ogawa, Hatsue Ishibashi‐Ueda, Toshihisa Anzai