@misc{indiciae589a59ac2671, title = {Perinatal mortality.}, author = {F Pettersson and S Melander and D Lagerberg}, year = {1973}, doi = {10.1111/j.1651-2227.1973.tb08097.x}, url = {https://pubmed.ncbi.nlm.nih.gov/4703017/}, note = {Source identifier: 4703017} }