Assertion: variant angina | /r/HasProperty | cardiac syndrome x
Facets:
value: by kemp
type: OTHER
value: in 1973
type: TEMPORAL
Source sentences:
text: Variant angina had been described twice in the 1930s by other authors and was referred to as cardiac syndrome X (CSX) by Kemp in 1973, in reference to patients with exercise-induced angina who nonetheless had normal coronary angiograms.