RT Journal Article SR Electronic T1 Transition from symptomatic diffuse spasm to cardiospasm. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 115 OP 119 DO 10.1136/gut.8.2.115 VO 8 IS 2 A1 P Kramer A1 L D Harris A1 R M Donaldson, Jr YR 1967 UL http://gut.bmj.com/content/8/2/115.abstract AB