system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A total of 5000 patients of glaucoma are identified and surveyed, including interviews regarding family history of glaucoma. Such a study design is called
assistant
The correct answer is  A case series (also known as a clinical series) is a type of descriptive study that tracks subjects with a known exposure, such as patients who have received similar treatment or examines their medical records for exposure and outcome.