Aktuális áttekintésben használt források
Wax, E. (Updated January 7, 2017). Vitamin K. MedlinePlus Medical Encyclopedia. Available online at https://medlineplus.gov/ency/article/002407.htm . Accessed Oct 2017.
(Reviewed February 16, 2015). Vitamin K. MedlinePlus Drugs and Supplements. Available online at https://medlineplus.gov/druginfo/natural/983.html . Accessed Oct 2017.
(Updated November 3, 2015) Lee, K. Vitamin K deficiency bleeding of the newborn. MedlinePlus Medical Encyclopedia [On-line information]. Available online at https://medlineplus.gov/ency/article/007320.htm . Accessed Oct 2017
(Updated September 27, 2017) Dieu-Thu, N. Vitamin K Deficiency, Medscape Reference. Available at https://www.medscape.com/viewarticle/770377 Accessed Oct 2017
Korábbi áttekintések során használt források
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(Nguyen-Khoa, Dieu-Thu, et. al.) Vitamin K Deficiency. Available online at http://emedicine.medscape.com/article/126354-overview through http://www.medscape.com. Accessed September 2013.
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