Letter to the Editor with regards to the article: Biotinidase deficiency in a Newborn

Barry Wolf, M.D., Ph.D., Genetics, Birth Defects and Metabolic Diseases, Department of Pediatrics, Lurie Children’s Hospital of Chicago and Northwestern University-Feinberg School of Medicine, Chicago, 60611, IL,USA. E-mail: barrywolf1@comcast.net.