JD, Q., MR, G., & KJ, R. (1981). Prenatal care and pregnancy outcome in an HMO and general population: A multivariate cohort analysis. American Journal of Public Health, 71(4), 381. https://doi.org/10.2105/AJPH.71.4.381
Chicago Style (17th ed.) CitationJD, Quick, Greenlick MR, and Roghmann KJ. "Prenatal Care and Pregnancy Outcome in an HMO and General Population: A Multivariate Cohort Analysis." American Journal of Public Health 71, no. 4 (1981): 381. https://doi.org/10.2105/AJPH.71.4.381.
MLA (9th ed.) CitationJD, Quick, et al. "Prenatal Care and Pregnancy Outcome in an HMO and General Population: A Multivariate Cohort Analysis." American Journal of Public Health, vol. 71, no. 4, 1981, p. 381, https://doi.org/10.2105/AJPH.71.4.381.
Warning: These citations may not always be 100% accurate.