B-vitaminA class of water-soluble vitamins that play important roles in cell metabolism.The complex includes pantothenic acid, niacin, biotin, folic acid, riboflavin (vitamin B2), thiamin (vitamin B1), vitamin B6, and vitamin B12 (cobalamin). |
BiopsyThe examination of tissue or cells removed from the body to study the presence, cause or extent of a disease. The examination is usually done under a microsocpe and in some cases with chemical analyses. There are different types of biopsies: in some, only very small tissue samples are needed, while sometimes larger tissue samples or a suspicious lump is removed entirely. |