What Are The Health Risks For Having Quintuplets?

What are the most common health risks from having quintuplets (it means pregnant with 5 babies if you didn't know) done through Vitro Fertilization? Is there a chance that one of the babies will die or is there a chance that I might die? Would the babies be born premature? What are premature babies like when they are older? I mean what health problems do they usually have?