Thomas, H., Murphy, M., Key, T., Fentiman, I., Allen, D., & Kinlen, L. (1998). Pregnancy and menstrual hormone levels in mothers of twins compared to mothers of singletons.
Citace podle Chicago (17th ed.)Thomas, H., M. Murphy, T. Key, I. Fentiman, D. Allen, a L. Kinlen. Pregnancy and Menstrual Hormone Levels in Mothers of Twins Compared to Mothers of Singletons. 1998.
Citace podle MLA (9th ed.)Thomas, H., et al. Pregnancy and Menstrual Hormone Levels in Mothers of Twins Compared to Mothers of Singletons. 1998.
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