Methylmalonic Acidemia [newbornscreening.info] Information on MMA at newbornscreening.info.
Disorders of Intracellular Cobalamin Metabolism [ncbi.nlm.nih.gov] An article published at Genereviews.org by David Adams, M.D., Ph.D. and study clinical director Charles P. Venditti, M.D., Ph.D.
Organic Acidemia Association [ncbi.nlm.nih.gov] A volunteer non-profit organization whose mission is to empower families and health care professionals with knowledge in organic acidemia metabolic disorders.