Evaluation of histochemical and molecular markers in the placenta of sows during pregnancy complicated by isoimmunizationAlexander Agarkov, Elena Grudeva, Nikolay Agarkov, Natalia Pisarenko and Nikolay BeluginE3S Web Conf., 273 (2021) 02003DOI: https://doi.org/10.1051/e3sconf/202127302003