public void AnalyzeHealthcareEntities_Cancellation() { string endpoint = TestEnvironment.Endpoint; string apiKey = TestEnvironment.ApiKey; var client = new TextAnalyticsClient(new Uri(endpoint), new AzureKeyCredential(apiKey)); string document = @"RECORD #333582770390100 | MH | 85986313 | | 054351 | 2/14/2001 12:00:00 AM | CORONARY ARTERY DISEASE | Signed | DIS | \ Admission Date: 5/22/2001 Report Status: Signed Discharge Date: 4/24/2001 ADMISSION DIAGNOSIS: CORONARY ARTERY DISEASE. \ HISTORY OF PRESENT ILLNESS: The patient is a 54-year-old gentleman with a history of progressive angina over the past several months. \ The patient had a cardiac catheterization in July of this year revealing total occlusion of the RCA and 50% left main disease ,\ with a strong family history of coronary artery disease with a brother dying at the age of 52 from a myocardial infarction and \ another brother who is status post coronary artery bypass grafting. The patient had a stress echocardiogram done on July , 2001 , \ which showed no wall motion abnormalities , but this was a difficult study due to body habitus. The patient went for six minutes with \ minimal ST depressions in the anterior lateral leads , thought due to fatigue and wrist pain , his anginal equivalent. Due to the patient's \ increased symptoms and family history and history left main disease with total occasional of his RCA was referred for revascularization with open heart surgery."; var batchDocument = new List <string>(); for (var i = 0; i < 10; i++) { batchDocument.Add(document); } AnalyzeHealthcareEntitiesOperation healthOperation = client.StartAnalyzeHealthcareEntities(batchDocument, "en"); healthOperation.Cancel(); }