@misc{indiciaeecd0a01cbbd5, title = {Responsiveness to glucagon in fetal hearts. Species variability and apparent disparities between changes in beating, adenylate cyclase activation, and cyclic AMP concentration.}, author = {K Wildenthal and D O Allen and J Karlsson and J R Wakeland and C M Clark}, year = {1976}, doi = {10.1172/jci108310}, url = {https://pubmed.ncbi.nlm.nih.gov/175087/}, note = {Source identifier: 175087} }