Larwin, Karen H., and Susan E. Horne. “The Cost of Doing Nothing: Preventable Premature Births for at-Risk Women”. Environment and Public Health Research 1, no. 1 (December 27, 2023): 1519. Accessed July 22, 2024. https://ojs.acad-pub.com/index.php/EPHR/article/view/1519.