Affiliation: | 1. Department of Histology and Cytophysiology Medical University of Bia?ystok ul.Mickiewicza 2C, 15-222 Bia?ystokkasacka@umb.edu.pl;3. Department of Histology and Cytophysiology Medical University of Bia?ystok ul.Mickiewicza 2C, 15-222 Bia?ystok;4. The Institute of Health Care, The Higher Vocational School,10 Noniewicza Street, 16-400 Suwa?ki, Poland |