@misc{indiciae6e21f81328da, title = {Chronotropic incompetence: a common and progressive finding in pacemaker patients.}, author = {N Gwinn and R Leman and J Kratz and J K White and M R Zile and P Gillette}, year = {1992}, doi = {10.1016/s0002-8703(10)80001-8}, url = {https://pubmed.ncbi.nlm.nih.gov/1575136/}, note = {Source identifier: 1575136} }