“…However, this increases delays and adds expense to a procedure that is already time consuming, costly and resource intensive. Targeted rescreening for high-risk patients can reduce both the cost and frequency of false negative results, 6,9 but it fails to address the problem of screening errors in the bulk of patients who are not at high risk. Additionally, such an approach requires continual interaction with the patient, a dependency that is unreliable, especially in less-developed countries and in public health mass screening programs.…”