@misc{indiciaeec86da76acf1, title = {[Electrocardiographic and polycardiographic studies in scleroderma].}, author = {W Traczewski and Z Ruszczak and J H Goch and A Kaszuba and T Bala}, year = {1977}, url = {https://pubmed.ncbi.nlm.nih.gov/846909/}, note = {Source identifier: 846909} }