Profile of HBsAg positive and negative hepatitis in Northern India.
D000293:Adolescent; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006509:Hepatitis B / Q000175:diagnosis*; D006514:Hepatitis B Surface Antigens; D006525:Hepatitis, Viral, Human / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged
D006514:Hepatitis B Surface Antigens