Loading Stack -
0 images remaining
Bird head (with beak) for bird-beak sign of achalasia.
Original file: http://commons.wikimedia.org/wiki/File:Gull_portrait_ca_usa.jpgI, the copyright holder of this work, hereby publish it under the following licenses: Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".