A series 6-aryl-pyrrolo[2,3-d]pyrimidine-4-amines (43 compounds), some of which are epidermal growth 22 factor tyrosine kinase inhibitors, were tested for their protozoal toxicity using an environmental Tetrahy- 23 mena ...

What is known and objective: Preservative efficacy in medicines is typically investigated using challenge tests. In such tests the product is artificially contaminated with a high concentration of standard bacterial and ...