Sympathetic Block

A binary relation such that if a is related to b then b is related to a.

An arbitrary sign (written or printed) that has acquired a conventional significance.

A relationship between two organisms in which one or both of the organisms benefit from the other.

A drug used to treat a rare condition called Castleman disease in patients who do not have HIV or human herpesvirus…

A unit of spoken language larger than a phoneme.

A drug used to treat melanoma in patients who have had surgery to remove cancer that has spread to lymph nodes. …