[1] Poznan Univ Med Sci, Dept Comp Sci & Stat, PL-60812 Poznan, Poland
[2] Poznan Univ Med Sci, Dept Histol & Embryol, PL-60781 Poznan, Poland
[3] Ahvaz Jundishapur Univ Med Sci, Fertil Infertil & Perinatol Res Ctr, Ahvaz, Iran
[4] Isfahan Univ Med Sci, Dept Immunol, Sch Med, Esfahan, Iran
[5] Tabriz Univ Med Sci, Infect & Trop Dis Res Ctr, Tabriz, Iran
[6] Future Sci Grp, Unitec House,2 Albert Pl, London N3 1QB, England
[7] Dezful Univ Med Sci, Fac Med, Dezful, Iran
[8] Nicolaus Copernicus Univ Torun, Inst Vet Med, Dept Vet Surg, PL-87100 Torun, Poland
[9] Wroclaw Med Univ, Dept Human Morphol & Embryol, Div Histol & Embryol, PL-50368 Wroclaw, Poland
[10] Wroclaw Univ, Sch Phys Educ, Dept Physiotherapy, PL-50038 Wroclaw, Poland
[11] Univ Zielona Gora, Div Anat & Histol, PL-65046 Zielona Gora, Poland
[12] Poznan Univ Med Sci, Dept Toxicol, PL-60631 Poznan, Poland
[13] Nicolaus Copernicus Univ Torun, Inst Vet Med, Dept Basic & Preclin Sci, PL-87100 Torun, Poland
[14] Nicolaus Copernicus Univ Torun, Inst Vet Med, Dept Diagnost & Clin Sci, PL-87100 Torun, Poland
[15] North Carolina State Univ, Prestage Dept Poultry Sci, Raleigh, NC 27607 USA
[16] North Carolina State Univ, Physiol Grad Fac, Raleigh, NC 27613 USA
[17] Wroclaw Med Univ, Dept Human Morphol & Embryol, Div Anat, PL-50368 Wroclaw, Poland
[18] Univ Hosp, Dept Obstet & Gynecol, Brno 60200, Czech Republic
[19] Masaryk Univ, Brno 60200, Czech Republic