Factors affecting the willingness of nursing care staffs for cooperation with heart failure care and the role of internet video education oleh Yoshiharu Kinugasa, Toshiaki Adachi, Masaharu Fukuki, Yutaka Hirota, Natsuko Ishiga, Masahiko Kato, Einosuke Mizuta, Emiko Mura, Yoshihito Nozaka, Hiroki Omodani, Hiroaki Tanaka, Yasunori Tanaka, Izuru Watanabe, Kazuhiro Yamamoto, Masaaki Mikami