Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Fukufuji Katsufumi and Shirai Tetsuro and Tsuchida Kenji and Kasao Masashi and Ochiai Hidenobu and Inoue Kiyoshi,Alternate left and right coronary spasm in a case of Prinzmetal angina pectoris,Shinzo,0586-4488,Japan Heart Foundation,2002,34,7,555-560,https://cir.nii.ac.jp/crid/1390282680465156992,https://doi.org/10.11281/shinzo1969.34.7_555