I received an Important Product Correction Notification from ORTHO on October 29 about using the AlbaQ-Chek controls for DAT. We were using AlbaQ 4 for the negative control and spiked unit segments for the positive control. I have done this at several facilities that I have worked at. ORTHO doesn't state that we have to stop using it, they only recommend that we stop using it. What are other users doing for their DAT controls?