• Hexaminolevulinate-guided transurethral resection of non-muscle-invasive bladder cancer does not reduce the recurrence rates after a 2-year follow-up: a prospective randomized trial.
• Gkritsios P, Hatzimouratidis K, Kazantzidis S,Dimitriadis, G,Ioannidis E, Katsikas V.Int Urol Nephrol. 2013 Nov 19
• 2nd Symposium of General Practitioners Guidelines. 21-22/11/2010 Thessaloniki, Greece.-Lecturer in round table “Urologic Guidelines in General Practice”
• 6th Macedonic Urological Symposium Thessaloniki, Greece, 2- 4 November 2007

-Case report . Extended trauma of external male genitalia – surgical reconstruction.

- Case report. Large degenerated renal mass – diagnostic and therapeutic approach.

- Case report. Large degenerated renal mass – diagnostic and therapeutic approach

• 18th Greek Urological Conference. 27 September – 1 October 2006, Rhodos  Island,  Greece.

-Epidemiological study on bladder cancer during the last five years.

-Appendiceal phlegmon mimicking renal colic: a case report.

• 12th International Congress on Hormonal Steroids and Hormones & Cancer. Athens, Greece. 13 – 16 September 2006.

Painful bone metastasis of patients suffering from prostate cancer, stage D3. Our clinical experience in the use of Zoledronic acid during the last four years.