E6/E7 functional differences among two natural human Papillomavirus 18 variants in human keratinocytes - Nunes, Emily Montosa; Nunes, Valéria Talpe; Sobrinho, João Simão; Ferreira, Silvaneide; Lino, Vanesca de Souza; Termini, Lara; Silva, Gabriela Ávila Fernandes; Boccardo, Enrique; Villa, Luisa Lina; Vettorazzo, Laura Cristina Sichero (Viruses, 2021)