JA, H., DM, J., DF, L., CA, M., MP, N., & T, A. (1991). Correlation of amniotic fluid index and nonstress test in patients with preterm premature rupture of membranes. American journal of obstetrics and gynecology, 165(4 Pt 1), 1088. https://doi.org/10.1016/0002-9378(91)90477-9
Chicago Style (17th ed.) CitationJA, Harding, Jackson DM, Lewis DF, Major CA, Nageotte MP, and Asrat T. "Correlation of Amniotic Fluid Index and Nonstress Test in Patients with Preterm Premature Rupture of Membranes." American Journal of Obstetrics and Gynecology 165, no. 4 Pt 1 (1991): 1088. https://doi.org/10.1016/0002-9378(91)90477-9.
MLA (9th ed.) CitationJA, Harding, et al. "Correlation of Amniotic Fluid Index and Nonstress Test in Patients with Preterm Premature Rupture of Membranes." American Journal of Obstetrics and Gynecology, vol. 165, no. 4 Pt 1, 1991, p. 1088, https://doi.org/10.1016/0002-9378(91)90477-9.