Okamoto Takaaki, Koh Katsuyoshi, Takita Junko, Furuya Ayaka, Kato Motohiro, Ida Kohmei
Department of Pediatrics, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
Pediatr Int. 2010 Feb;52(1):137-41. doi: 10.1111/j.1442-200X.2009.02947.x.