@misc{indiciae424dcf6f8287, title = {Sinus node dysfunction in 128 patients. A retrospective study with follow-up.}, author = {E Simonsen and J S Nielsen and B L Nielsen}, year = {1980}, doi = {10.1111/j.0954-6820.1980.tb01210.x}, url = {https://pubmed.ncbi.nlm.nih.gov/7457202/}, note = {Source identifier: 7457202} }