@article{376917bd93f54b15be34753dabf10069,
title = "Thinker's sign",
keywords = "Chronic obstructive pulmonary disease (COPD), Thinker's sign",
author = "Patel, {Sandeep M.} and Ryu, {Jay H.} and Hiroshi Sekiguchi",
note = "Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",
year = "2011",
doi = "10.2169/internalmedicine.50.6314",
language = "English (US)",
volume = "50",
pages = "2867--2868",
journal = "Internal Medicine",
issn = "0918-2918",
publisher = "Japanese Society of Internal Medicine",
number = "22",
}