Redistribution and use in source and binary forms, with or without modification, are
   permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright notice, this list of
      conditions and the following disclaimers.

   2. Redistributions in binary form must reproduce the above copyright notice, this list of
      conditions and the following disclaimers in the documentation and/or other materials
      provided with the distribution.

   3. Neither the name of PixelMed Publishing nor the names of its contributors may
      be used to endorse or promote products derived from this software.

   This software is provided by the copyright holders and contributors "as is" and any
   express or implied warranties, including, but not limited to, the implied warranties
   of merchantability and fitness for a particular purpose are disclaimed. In no event
   shall the copyright owner or contributors be liable for any direct, indirect, incidental,
   special, exemplary, or consequential damages (including, but not limited to, procurement
   of substitute goods or services; loss of use, data or profits; or business interruption)
   however caused and on any theory of liability, whether in contract, strict liability, or
   tort (including negligence or otherwise) arising in any way out of the use of this software,
   even if advised of the possibility of such damage.