Preclinical Services provides the facilities and technical assistance needed to support research procedures. PS can be hired in a number of capacities depending on the desired scope of work. PS can perform a single task or conduct an entire study including collection and processing of data and results. The PS team provides services for a variety of routine in vivo testing, including minor and major surgeries, anesthetic support, drug administration, collection of tissues, and euthanasia of animals. PS assistance includes, but is not limited to: pharmacokinetics, tumor studies, efficacy studies, immunogenicity studies, toxicity studies, and a variety of other special models as requested by clients. PS is the institutional resource regarding the choice and source of animals, animal models, analgesics, anesthetics, drugs, and matters of animal anatomy, physiology, nutrition and husbandry. PS will also work with individuals to coordinate work and act as a liaison between other Tufts Comparative Medicine Services and University core facility services.