http://medstandart.net/browse/1680


href="http://msvitu.com/archive/2007/january/article-5.php">http://msvitu.com/archive/2007/january/article-5.php

 

http://doctor.wpoonline.com/article.php?sid=12070

 

http://pediatric.mif-ua.com/archive/issue-16524/article-20657/