sorry that one is truly beyond me i am not good with blood and insides and things my advice to anyone and everyone writing wikipedia is to stick to a subject you undertstand in an effort of collaboration i did try to read it through but when i came to this picture file esophageal varices wale jpg i felt a little unwell myself however it is clearly very well written and informative and i think it is fantastic that someone with such a grasp of the subject takes the time to write at wikipedia one page like that is worth a billions of some of the others congratulations and good luck i'm sure it is fa standard already