Selvais, P. L., Ahn, S., Rousseau, L. J., Vanlinden, F., Ketelslegers, J.-M., & Rousseau, M. (2002). Usefulness of the supine-rest maneuver before neurohormonal sampling. The American Journal of Cardiology, 89(6), 772-774. https://doi.org/10.1016/S0002-9149(01)02354-2 (Original work published 2002)