The below article has been retracted. Article title 「EFFECTS OF OLPRINONE ON NEUROMUSCULAR BLOCKADE CAUSED BY VECURONIUM」Author Takaaki Katayama , Yuhji Saitoh , Chiaki Nemoto , Takahiro Hirama , Tsuyoshi Isosu , Masahiro Murakawa Journal title FUKUSHIMA JOURNAL OF MEDICAL SCIENCE Vol.53, No.2 2007:61-69 Fukushima Medical SocietyEditorial CommitteeJuly 5 , 2017.