Distance and oxygen desaturation in 6-min walk test predict prognosis in COPD patients
Nagio Takigawa,
Atsuhiko Tada,
Ryo Soda,
Hiroshi Date,
Motohiro Yamashita,
Shigeto Endo,
Syuji Takahashi,
Noriko Kawata,
Takuo Shibayama,
Noboru Hamada,
Respiratory Medicine · 2006 · 102 citations · 13 references