In the January 2016 issue, the article “Gut microbiome profiling tests propelled by customer demand” incorrectly stated that uBiome's SmartGut test costs $89. Instead, that should have said that the price depends on the insurer, as this is a doctor-ordered, insurance-reimbursable clinical lab test, and that the uBiome Gut Explorer kit, which is available to the public online, costs $89.