REVIEWS

Neoplasms – biological phenomenon Madej J.A., et al. [ summary ] 439

Systematic review regarding treatment of tibial tuberosity ... Morawska-Kozłowska M., et al. [ summary ] 450

Role of bioactive substances in sheep's milk and its products .. Flis Z. et al. [ summary ] 460

ORIGINAL PAPERS

Relation between defects in the lumbar spine and the position ... Dzierzęcka M., et al. [ summary ] 467

The efficiacy of albendazole and paromomycin treatments against natural ... Köse O., et al. [ summary ] 473

Analysis of Correlations between Selected Blood Markers of Acid-Base Balance... Mordak R., et al. [ summary ] 478

Antimicrobial activity of marjoram and thyme essential oils ... Drozd Ł. [ summary ] 484

Animal experiments in statements of the Church of England Smykowski K., et al. [ summary ] 489