Study KitLocationDate/Time Request Your InfoRequest Blood Collection Appointment - Xella Endo Study Request Blood Collection Appointment - Xella Endo Study Blood Collection Kit Received Have you received your blood collection kit? YES NO DO NOT CONTINUE WITH YOUR REQUEST AT THIS TIME. Once you have received your kit for this study, please return to this page to request an appointment. If you have questions, contact the Xella Health team at support@xella.bio. If you are human, leave this field blank. Continue