[1] Riga East Univ Hosp, Ctr Pathol, Riga, Latvia
[2] Univ Latvia, Dept Pathol, Fac Med, Riga, Latvia
[3] Riga East Univ Hosp, Dept Oncol, Riga, Latvia
[4] Riga Stradins Univ, Dept Obstet & Gynaecol, Riga, Latvia
[5] Riga East Univ Hosp, Dept Gynaecol, Riga, Latvia