An open-label randomized controlled parallel-group pilot study comparing the immunogenicity of a standard-, double-, and booster-dose regimens of the 2014 seasonal trivalent inactivated influenza vaccine in kidney transplant recipients - Odongo, Fatuma Catherine Atieno; Braga, Patricia Emilia; Palacios, Ricardo; Miraglia, João Luiz; Sartori, Ana Marli Christovam; Ibrahim, Karim Yaqub; Lopes, Marta Heloisa; Caiaffa-Filho, Helio Hehl; Timenetsky, Maria do Carmo Sampaio Tavares; Agena, Fabiana (Transplantation, 2022)