[1] Natl Inst Canc Res, Div Histopathol & Cytopathol, Ist Ricovero & Cura Carattere Sci Azienda Osped U, Genoa, Italy
[2] Natl Inst Canc Res, Unit Tumor Epigenet, Ist Ricovero & Cura Carattere Sci Azienda Osped U, Genoa, Italy
[3] Azienda Sanit Locale 5, Div Histopathol & Cytopathol, La Spezia, Italy
[4] Azienda Sanit Locale 5, Div Pneumol, La Spezia, Italy