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APA Citation
von Kries, R., Kreppel, S., Becker, A., Tangermann, R., & Göbel, U. (1987). acarboxyprothrombin concentration [corrected] after oral prophylactic vitamin K.. Archives of disease in childhood, 62(9), 938–940. http://access.bl.uk/ark:/81055/vdc_100135137873.0x000049