Comparison of Different Diagnostic Methods of Helicobacter pylori in Dyspeptic Patients of a Tertiary Care Hospital of Uttarakhand, India Journal title: National Journal of Laboratory Medicine Authors: Dr. Shiwani Sharma, Dr. Garima Mittal, Dr. R K Agarwal, Dr. Vivek Ahuja, Dr. Rohit Gupta, Dr. Sohaib... Subject(s):