@misc{indiciae78771ff42409, title = {Decrease in the transmembrane sodium activity gradient in ferret papillary muscle as a prerequisite to the calcium paradox.}, author = {T Guarnieri}, year = {1988}, doi = {10.1172/jci113541}, url = {https://pubmed.ncbi.nlm.nih.gov/2454951/}, note = {Source identifier: 2454951} }