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X factorHair replacement A popular term for an unidentified cause of follicular destruction, which occurs in up to 1% of Pts undergoing hair transplantation
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
A growth factor, identified as hemin, that is needed to grow Haemophilus influenzae in culture.See: hemin
See also: factor
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