Yutaka Yojiro, Katakura Hiromichi, Noguchi Susumu, Ura Katsuaki, Yamanaka Akira
Respiratory Disease Center, Otsu Red Cross Hospital, 1-1-35 Nagara, Otsu, Shiga 520-8511, Japan.
Postgrad Med J. 2012 Feb;88(1036):113-4. doi: 10.1136/postgradmedj-2011-130457.