How often should imaging be repeated? So starting with smoldering, I would usually recommend once a year or if there are changes in the serological markers, if there's a rise of M-protein or hemoglobin lower, calcium higher, creatinine higher. So other reasons for suspicion of progression, then it would repeat again. In symptomatic myeloma, we do the first diagnosis to assess the disease at after treatment to see how much is left of the disease. And with the newer techniques, if we use PET CT and low-dose CT and MRI, it's usually enough to do another imaging at relapse or at any sign of serological changes. I had a few patients who had no changes in serological markers but had changes in the bone marrow. So sometimes it's warranted there. PET CT helps us also beyond just a myeloma assessment, we also learn about if there are other tumors developing because we know that up to 10% of patients can develop secondary cancers after high-dose chemotherapy with lenalidomide maintenance treatment. So that's another kind of additional question that we can ask for imaging after treatment. Imaging should be repeated for patients to look at their myeloma bone disease whenever their myeloma is out of control and at very short intervals if their disease continues to be out of control. If their myeloma is in good control, especially if patients are in remission, they don't need any evaluation for their myeloma bone disease in the vast majority of patients. There are some rare patients that can potentially develop a non-secretory relapse disease that can affect and lead to fractures and you wouldn't know based on looking at their monoclonal protein. I've been doing this for 12 years and I've seen one of those patients. Well, usually when I start treatment and the patient had as a baseline a PET CT after the treatment to determine remission, I do also a PET CT to see whether the activity and the PET CT has gone down. So this is important because we know that complete remission is not only defined by the loss of your MSPYC, it's also defined by a normalization of the activity in the PET CT. But again, all patients at the baseline also add the determination of your remission status or in case you are concerned that you might have a relapse or your doctor is concerned that you have a relapse, you should repeat the imaging technique such as a PET CT or a whole body CT scan.