You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is What are the guideline document for Syncope? and explain in detail?
2017 ACC/AHA/HRS Guideline for theEvaluation and Management ofPatients With SyncopeA Report of the American College of Cardiology/American Heart AssociationTask Force on Clinical Practice Guidelines and the Heart Rhythm Society