ABCB5 and neoplasm: Repeated subcutaneous or intravenous injections neither provoked any signs of human cell-related tumor development, ectopic tissue formation or micrometastases, nor did it elicit any signal indicative of ABCB5+ MSC-related toxicity regarding mortality, clinical signs, body weight development, food consumption, ophthalmological examination, urine analysis, hematology, blood chemistry, blood coagulation, and macro-pathological and histopathological examination.