Ergonovine maleate provocative test for coronary arterial spasm.

@article{Heupler1978ErgonovineMP,
  title={Ergonovine maleate provocative test for coronary arterial spasm.},
  author={Frederick A Heupler and William L Proudfit and Mahmood Razavi and E K Shirey and Richard L. Greenstreet and William C. Sheldon},
  journal={The American journal of cardiology},
  year={1978},
  volume={41 4},
  pages={631-40}
}