1. Department of BiochemistryInstitute of Experimental MedicineRussian Academy of Medical SciencesSt. PetersburgRussia
2. Department of EmbryologySt. Petersburg State UniversitySt. PetersburgRussia
3. Department of ImmunologyInstitute of Experimental MedicineRussian Academy of Medical SciencesSt. PetersburgRussia
4. North‐West Regional Medical CenterSt. PetersburgRussia
5. Department of Cytology and HistologySt. Petersburg State UniversitySt. PetersburgRussia