Martinez-Atienza, Juliana Efficacy and safety of a booster dose of influenza vaccination in solid organ transplant recipients, TRANSGRIPE 1-2: study protocol for a multicenter, randomized, controlled clinical trial. [electronic resource] - Trials Aug 2014 - 338 p. digital Publication Type: Clinical Trial, Phase III; Comparative Study; Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1745-6215 Standard No.: 10.1186/1745-6215-15-338 doi Subjects--Topical Terms: Antibodies, Neutralizing--bloodAntibodies, Viral--bloodBiomarkers--bloodClinical ProtocolsGraft Rejection--immunologyGraft SurvivalHospitals, PublicHumansImmunization, SecondaryInfluenza Vaccines--administration & dosageInfluenza, Human--diagnosisOrgan Transplantation--adverse effectsOrthomyxoviridae--immunologyResearch DesignSpainTime FactorsTreatment Outcome