Authors
Mihail Chervenkov
Bulgarian Academy of Sciences, Institute of Biology and Immunology of Reproduction, Sofia, Bulgaria
Teodora Ivanova
Bulgarian Academy of Sciences, Institute of Biodiversity and Ecosystem Research, Sofia, Bulgaria
Paulina Taushanova
Bulgarian Academy of Sciences, Institute of Biology and Immunology of Reproduction, Sofia, Bulgaria
Rossen Stefanov
Bulgarian Academy of Sciences, Institute of Biology and Immunology of Reproduction, Sofia, Bulgaria
Boyko Georgiev
Bulgarian Academy of Sciences, Institute of Biology and Immunology of Reproduction, Sofia, Bulgaria