@misc{indiciaeca85a7295063, title = {Electrocariographic changes during selective coronary angiography. A comparison between Urografin 60 percent and isopaque 290 without calcium ions.}, author = {H Eie and H Grendahl and A Nordvik and C Müller}, year = {1972}, doi = {10.1177/028418517201200504}, url = {https://pubmed.ncbi.nlm.nih.gov/4636617/}, note = {Source identifier: 4636617} }