A news story that appeared in the Oct. 1, 2013, issue of CMAJ incorrectly stated that Atlantic Canada has no facility to test for crucial genetic mutations that could improve some patients’ treatment options. In fact, a Halifax-based screening program was launched in September 2012 and has subsequently tested more than 500 cases from throughout the region, and offers this additional level of care to qualifying individuals from all four provinces. CMAJ apologizes for any this error and omission.