Veterinary Drug Handbook (VDH) is the reference veterinarians turn to when they want an independent source of information on the drugs that are used in veterinary medicine today.


Surgical removal of a small amount of abnormal tissue, usually of tumors, for diagnosis. To take a small sample of an organ for microscopic examination. Obtaining a piece of tissue for analysis using a specialized needle or a scalpel balde. Obtaining a sample of tissue for microscopic analysis.

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