Trends in cervical cancer incidence and mortality in the Baltic countries, Bulgaria and Romania., Arbyn, M., Antoine Jérôme, Mägi Margit, Smailyte Giedre, Stengrevics Aivars, Suteu Ofelia, Valerianova Zdravka, Bray Freddie, and Weiderpass Elisabete , Int J Cancer, 2011 Apr 15, Volume 128, Issue 8, p.1899-907, (2011)