Comparative Biosciences, Inc. Comparative Biosciences, Inc.  (CBI), offers in vivo efficacy models and preclinical pharmacology, toxicology, and histology services to all sectors of the biomedical and pharmaceutical communities, with specialized expertise in dermatology, ophthalmology, oncology, wound healing, regenerative medicine, otology and infectious disease. CBI is AAALAC accredited and compliant with FDA, USDA and OLAW regulations.