Hello! Hello! I´m Mariana. I joined Italki because I want to improve my English, and specially understand some of the articles I have to read for my work. I´d love to talk to someone who works on the same field I do, which is human health, hematology and oncology. There´s an article I´m reading now which says just one time ´´poorest-risk group´´, talking about a group of leukemia patients. I need to know if this means ´´Low risk´´ or the opposite: ´´high risk´´