JULIAN CARLOS DE LA TORRE CISNEROS2026-01-292026-01-29202310.3389/fimmu.2023.11429182-s2.0-85158920501https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/36390ImmunologyImmunology and AllergyMemory SARS-CoV-2 T-cell response in convalescent COVID-19 patients with undetectable specific IgG antibodies: a comparative studyresearch article