The clinical outcome of patients with stage Ia1 and Ia2 squamous cell carcinoma of the uterine cervix: a Cooperation Task Force (CTF) study. - Gadducci,A.; Sartori,E.; Maggino,T.; Landoni,F.; Zola,P.; Cosio,S.; Pasinetti,B.; Alessi,C.; Maneo,A.; Ferrero,A. (Eur J Gynaecol Oncol, 2003)