Kaushansky, K.; Lichtman, M.; Prchal, J.; Levi, M.; Press, O.; Burns, L.; Caligiuri, M. (2015). Williams Hematology (9 edición). McGraw-Hill. p. 1926. ISBN9780071833004.
Long GL, Marshall A, Gardner JC, Naylor SL (1988). «Genes for human vitamin K-dependent plasma proteins C and S are located on chromosomes 2 and 3, respectively». Somat. Cell Mol. Genet.14 (1): 93-8. PMID2829367. doi:10.1007/BF01535052.
Long GL, Marshall A, Gardner JC, Naylor SL (1988). «Genes for human vitamin K-dependent plasma proteins C and S are located on chromosomes 2 and 3, respectively». Somat. Cell Mol. Genet.14 (1): 93-8. PMID2829367. doi:10.1007/BF01535052.