1. Endoscopic Therapy as first line treatment for pancreatic ascites and pleural effusion.  J. Gastroenterol Hepatol 2009; 24:1198-1202.

2. Chronic Pancreatitis.  A Prospective Nationwide Study of 1,086 subjects from India.  J. Pancreas 2008; 9(5):593-600.

3. Durgaprasad S, Pai CG, Vasanthkumar, Alvares JF, Sanjeeva, Namitha.  A pilot study of the effect of curcumin in tropical pancreatitis.  Ind J Med Res 2005; 122:315-8.

4. Pai CG, Thomas C P, Biswas A , Rao S , Ramnarayan K.  Quadruple therapy for initial eradication of Helicobacter pylori in peptic ulcer: comparison with triple therapy. Indian Journal of Gastroenterology , Year 2003, Volume 22, Issue 3, 85-7

5. Pai CG.  Precut papillotomy using needle knife fashioned from discarded standard sphincterotomes.  Indian J Gastroenterology 2000; 15:116-8.

6. Rao PS, Sarkar A, Shivananda PG, Pai CG.  Comparison of Elisa for antibody detection and biopsy urease test for H pylori in gastrointestinal disorders.  Ind J Med Sci 2001; 55:366-70.

7. Pai CG. Suboptimal response to commercially available kits for Helicobacter pylori eradication.  Indian Journal Gastroenterology 2000; 15:92- 93.

8. Pai CG.  Secondary oesophageal peristalsis in gastro-oesophageal reflux disease.  Journal of Gastroenterogy and Hepatology 2000; 15:30-4.
 
9. Pai CG.  Khandige GK.  Is Crohn’s disease rare in India? Indian Journal of Gastroenterology 2000; 19:17-20.

10. Pai CG, Kurien G.  A radiographic method for estimating segmental colonic transit time in subjects with rapid gut transit.  Indian Journal of Medical Research 1999; 110:22-6.

11. Pai CG, Sreejayan, Rao MNA.  Evidence for oxidant stress in chronic pancreatitis.  Indian Journal of Gastroenterology. 1999;18:156-7.

12. Pai CG.  Is Helicobacter pylori eradication therapy indicated in Indian patients with duodenal ulcer? Indian Journal of Gastroenterology 1998; 17:116-7.

13. Pai CG, Thomas V, Hariharan M, Nair KV.  Rectal Varices in Extra-hepatic Portal Hypertension.  Journal of Gastroenterology & Hepatology 1993; 8: 244-246.

20. Nair K V, Pai CG, Thomas M.  Unusual presentations of Duodenal Tuberculosis.  American Journal of Gastroenterology 1991; 86: 756-60.

21. Nair KV, Pai CG.  Helicobacter pylori infection in patients with and without duodenal ulcer. Journal of Association of Physicians of India, 1991.

22. Nair KV, Pai CG.  Endoscopic removal of foreign bodies from the stomach and duodenum using conventional biopsy forceps.  Journal of Association of Physicians of India, 1991; 39: 231.

23.Varicella Encephalitis with Transient Diabetes Insipidus.  Kerala Medical Journal.  1984; 25: 255.

24. Reiters syndrome.  Kerala Medical Journal, 1987; 28: 337.

25. Rectal Amoeboma.  Kerala Medical Journal, 1988; 29: 609.