Madsen Kristine A, Yen Sophia, Wlasiuk Lidya, Newman Thomas B, Lustig Robert
Department of Pediatrics, University of California-San Francisco, 3333 California Street, San Francisco, CA 94118, USA.
Arch Pediatr Adolesc Med. 2007 Jan;161(1):105-7. doi: 10.1001/archpedi.161.1.105-c.