Donckier, J., Michel, L., Collard, E., Berbinschi, A., Ketelslegers, J.-M., Harvengt, C., & Buysschaert, M. (1988). Parallel changes of atrial natriuretic factor and catecholamines during surgery for pheochromocytoma. The American Journal of Medicine, 85(2), 278-279. https://doi.org/10.1016/S0002-9343(88)80369-3 (Original work published 1988)