Vitamin k and childhood cancer: a population based case-control study in Lower Saxony, Germany

R. Vonkries, U. Gobel, A. Hachmeister, Uwe Kaletsch & Jörg Michaelis
Objective-To confirm or refute a possible association of parenteral vitamin K prophylaxis and childhood cancer. Design-Population based case-control study. Comparison of vitamin K exposure in children with leukaemia or other common tumours with two control groups. Setting-State of Lower Saxony (north western part of Germany); case recruitment from the German childhood cancer registry. Subjects-272 children with leukaemia, nephroblastoma, neuroblastoma, rhabdomyosarcoma, and tumours of the central nervous system diagnosed between 1 July 1988 and 30 June...
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