@misc{indiciae643cddda314e, title = {Age-associated decrease in heart rate response to isoproterenol in dogs.}, author = {F C Yin and H A Spurgeon and H L Greene and E G Lakatta and M L Weisfeldt}, year = {1979}, doi = {10.1016/0047-6374(79)90067-8}, url = {https://pubmed.ncbi.nlm.nih.gov/449422/}, note = {Source identifier: 449422} }