Researchers now know much more about sickle cell disease and trait than ever before, and new advancements are being made every day. The Northwest Sickle Cell Collaborative has established a registry exclusively for people with sickle cell disease or trait. It can stay up to date now and for years to come. Signing up for the registry is free, and you'll keep yourself and your child well informed. Registration is confidential and you may choose not to be contacted at any time. To register, call 206-987-NWSC (6972).