This Web site is provided for professional services. The information provided should not be used for diagnosing or copy the provided information for others or any usages in internal purposes.  No physician-patient relationship is created by this Web site or its use.  Neither the company nor its employees, nor any contributor to this Web site, makes any representations, express or implied, with respect to the information provided herein or to the its use.

All copyrights to the ChainTec Web site and its contents are the property of the ChainTec unless otherwise noted.  Except when indicated, permission is hereby granted to reproduce, distribute, and display copies of content material for professional services and nonprofit library purposes, provided that: (i) copies are distributed at or below costs; (ii) author and source are acknowledged; and (iii) a copyright notice is attached to the copies, such notice being in the form "ChainTec 2005" (or as otherwise indicated on the materials as posted here).  No commercial uses are allowed without the prior express permission of the ChainTec.