Safety of intramuscular influenza vaccine in patients receiving oral anticoagulation therapy: a single blinded multi-centre randomized controlled clinical trial
Josep Casajuana, Begoña Iglesias, Mireia Fàbregas, Francesc Fina, Joan-Antoni Vallès, Rosa Aragonès, Mència Benítez, and Edurne Zabaleta
BMC Blood Disord. 2008; 8: 1. Published online 2008 May 29. doi: 10.1186/1471-2326-8-1.