Zanelli, Magda, et al. “Parvovirus B19 Infection in a Patient With Common Variable Immunodeficiency: Parvovirus B19 Infection in a Patient With Common Variable Immunodeficiency”. Mediterranean Journal of Hematology and Infectious Diseases, vol. 13, no. 1, Feb. 2021, p. e2021026, doi:10.4084/mjhid.2021.026.