Heyn, R.; Relucenti, M.; Petruzziello, L.; Battaglione, E.; Iannaccio, S.; Lukic, A.; Giovagnoli, M.; Familiari, G. Comparison of Conventional Cervical Cytological Sampling (Ayre’s Spatula, Endocervical Brush) and the PapCone® As Seen by Scanning Electron Microscopy. Ital J Anat Embryol 2010, 115, 80.