@misc{indiciaea74c4f3c7912, title = {Decrease in heart contractility produced by ouabain in fibers exposed to theophylline.}, author = {W C De Mello and M Gonzalez-Castillo}, year = {1980}, url = {https://pubmed.ncbi.nlm.nih.gov/7403655/}, note = {Source identifier: 7403655} }