AL, K., & EW, H. (1961). Bacteriuria and pyelonephritis of pregnancy. A prospective study of 616 pregnant women. The New England journal of medicine, 265, 667. https://doi.org/10.1056/NEJM196110052651402
Chicago Style (17th ed.) CitationAL, KAITZ, and HODDER EW. "Bacteriuria and Pyelonephritis of Pregnancy. A Prospective Study of 616 Pregnant Women." The New England Journal of Medicine 265 (1961): 667. https://doi.org/10.1056/NEJM196110052651402.
MLA (9th ed.) CitationAL, KAITZ, and HODDER EW. "Bacteriuria and Pyelonephritis of Pregnancy. A Prospective Study of 616 Pregnant Women." The New England Journal of Medicine, vol. 265, 1961, p. 667, https://doi.org/10.1056/NEJM196110052651402.
Warning: These citations may not always be 100% accurate.