@ARTICLE{Przygrodzka_E._Effect_2014, author={Przygrodzka, E. and Janowski, T. and Andronowska, A. and Zięcik, A.J.}, number={No 1}, journal={Polish Journal of Veterinary Sciences}, howpublished={online}, year={2014}, publisher={Polish Academy of Sciences Committee of Veterinary Sciences}, publisher={University of Warmia and Mazury in Olsztyn}, title={Effect of vaginal administration of prostaglandin E2 and/or 17β-estradiol on luteal function and histological characteristics of the cervix in cyclic pigs}, URL={http://journals.pan.pl/Content/99244/PDF/16.pdf}, doi={10.2478/pjvs-2014-0016}, }