- Coronary vasospasm as a possible cause of myocardial infarction. A conclusion derived from the study of "preinfarction" angina. Maseri, A., L'Abbate, A., Baroldi, G., Chierchia, S., Marzilli, M., Ballestra, A.M., Severi, S., Parodi, O., Biagini, A., Distante, A., Pesola, A. N. Engl. J. Med. (1978)