Ambul Pediatr. 2005 Sep-Oct;5(5):261-2. doi: 10.1367/1539-4409(2005)5[261:LFTESR]2.0.CO;2.
Ambulatory pediatrics : the official journal of the Ambulatory Pediatric Association
James M Perrin
PMID: 16167847 DOI: 10.1367/1539-4409(2005)5[261:LFTESR]2.0.CO;2
[No abstract available.]