Author(s). Title of topic. In: UpToDate, Post TW, ed. UpToDate. Waltham, MA: UpToDate Inc. Updated date. Accessed date.
Example: Smith AB, Jones CD. Hypertension in adults. In: UpToDate, Post TW, ed. UpToDate. Waltham, MA: UpToDate Inc. Updated March 15, 2025. Accessed July 6, 2026.