Lagerqvist , B., Sylvén , C., Helmius , G. and Waldenström , A. 1990. Effects of Exogenous Adenosine in a Patient with Transplanted Heart. Evidence for Adenosine as a Messenger in Angina Pectoris. Upsala Journal of Medical Sciences. 95, 2 (Sep. 1990), 137-145. DOI:https://doi.org/10.3109/03009739009178582.