Immune response against the SARS-CoV-2 spike protein in cancer patients after COVID-19 vaccination during the Omicron wave: a prospective study oleh María José Muñoz-Gómez, Pablo Ryan, Marta Quero-Delgado, María Martin-Vicente, Guillermo Cuevas, Jorge Valencia, Eva Jiménez, Natalia Blanca-López, Miguel Ángel Lara-Álvarez, José Ángel Hernández-Rivas, Gerardo Redondo, Vicente Mas, Daniel Sepúlveda-Crespo, Mónica Vázquez, Juan Torres-Macho, Isidoro Martínez, Salvador Resino