Correction to: Role of acetylcholine spasm provocation test as a pathophysiological assessment in nonobstructive coronary artery disease

Correction to: Cardiovascular Intervention and Therapeutics https://doi.org/10.1007/s12928-020-00720-z

The Publisher regrets the following error.

In the original publication of the article, Fig. 3 and the figure legend were published incorrectly. The correct Fig. 3 and figure legend are given in this correction.

Fig. 3

Acetylcholine (ACh)-provoked focal and diffuse spasm. Figures (a-c) show the focal spasm pattern. a–c Left coronary angiogram performed as a control before the ACh-provocation test. b Injection of ACh 50 μg into the LCA provoked complete occlusion in the LAD at the arrow position. c Injection of ISDN into the LCA improved the focal spasm in the LAD. Figures (d–f) show the diffuse spasm pattern. d Left coronary angiogram performed as a control before the ACh-provocation test. e Injection of ACh 100 μg into the LCA provoked diffuse spasm in the LAD. f Injection of ISDN into the LCA improved the diffuse spasm in the LAD. ACh acetylcholine, LCA left coronary artery, LAD left anterior descending coronary artery, ISDN isosorbide dinitrate. *Coronary sinus catheter, **Pacing catheter

The original article has been corrected.