Thank you for e-mail, but i want to know type of rocking according to movement of chamber as for example some doctors said as in Lt vent. hypertrophy the chamber bulge so i say external rocking according to apex bulge in relation to Rt vent. while others say internal rocking according to direction of movement of apex to inside and visa a versa thus i'm confused!! i don't tried to post on teh cardiology mailing list / newsgroup could you know me how? thanks Mohameh Hosni ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%