@misc{indiciaeb82349478548, title = {Ethnic differences in preterm and very preterm delivery.}, author = {P H Shiono and M A Klebanoff}, year = {1986}, doi = {10.2105/ajph.76.11.1317}, url = {https://pubmed.ncbi.nlm.nih.gov/3766827/}, note = {Source identifier: 3766827} }