@misc{indiciae5492e2ddd5ed, title = {Unidentified risk factor?}, author = {O Axelson and B Johansson and U Flodin}, year = {1983}, doi = {10.1097/00043764-198303000-00005}, url = {https://pubmed.ncbi.nlm.nih.gov/6842308/}, note = {Source identifier: 6842308} }