1. Celik N, Bilkay U, Guner U, Totan S, Ozek C, Erdem O, Cagdas A. Van der Woude Syndrome: case report and review of literature. September 31-October 3, 1999, National Congress of the Turkish Society of Plastic Surgeons Kusadasi, Turkey

2. Bilkay U, Celik N, Ozek C, Gorken C, Guner U, Gurler T, Akin Y, Cagdas A. Linear skin deficiency syndrome: case report. September 31-October 3, 1999, National Congress of the Turkish Society of Plastic Surgeons Kusadasi, Turkey

3. Alper M, Totan S, Bilkay U, Celik N, Ozek C, Songur E, Akin Y, Cagdas A. Lower extremity salvage with extended free TRAM flap. September 31-October 3, 1999, National Congress of the Turkish Society of Plastic Surgeons Kusadasi, Turkey

4. Alper M, Celik N, Totan S, Ozek C, Bilkay U, Songur E, Akin Y, Cagdas A. Multi sessional operations in large composite tissue defects in orbito frontotemporal region: Free flaps and craniofacial reconstructions. September 31-October 3, 1999, National Congress of the Turkish Society of Plastic Surgeons Kusadasi, Turkey

5. Alper M, Totan S, Celik N, Ozek C, Bilkay U, Gorken C, Cagdas A. Reconstruction with saphenous by pass graft and TRAM flap in a knee defect. September 31-October 3 ,1999 National Congress of the Turkish Society of Plastic Surgeons Kusadasi, Turkey

6. Erdem O, Celik N, Gurtunca F, Bilkay U, Gurler T, Songur E. Psychosocial properties of the families who have a baby with a craniomaxillo-facial deformity. September 31-October 3 ,1999 National Congress of the Turkish Society of Plastic Surgeons Kusadasi, Turkey

7. Celik N, Gurler T, Alper M, Ozek C, Songur E. Reconstruction in periorbital and blow-out fractures. March 21-25, 1999 Winter Symposium of Turkish Society of Plastic, Reconstructive and Aesthetic Surgeons ‘Oculoplastic Surgery’ Kartalkaya, Turkey

8. Gurler T, Celik N, Alper M, Erdem O, Cagdas A. Our five-year experience in periorbital fractures. March 21-25, 1999 Winter Symposium of Turkish Society of Plastic, Reconstructive and Aesthetic Surgeons ‘Oculoplastic Surgery’ Kartalkaya, Turkey

9. Kececi Y, Gurler T, Alper M, Guner U, Celik N, Mutluer S, Songur E. Complications in Craniofacial operations. September 2-7, 1997. 19th National Congress of Plastic Surgery. Antalya, Turkey

10. Bilkay U, Alper M, Gurler T, Bilkay U, Celik N, Gundogan H, Cetinkaya S, Songur E, Cagdas A. The Effects of subperiosteal dissection in callus formation. An experimental study in rabbit mandible. September 2-7, 19th 1997. National Congress of Plastic Surgery. Antalya, Turkey

11. Gurler T, Ozek C, Totan S, Celik N, Songur E. Surgical treatment of siallorhea in spastic children. September 2-7, 1997. 19th National Congress of Plastic Surgery. Antalya, Turkey

12. Gurler T, Alper M, Bilkay U, Gundogan H, Celik N, Songur E, Akin Y, Cagdas A. Vertical Rectus Abdominous Musculocutaneous (VRAM) flap for inguinal defects. September 2-7, 19th National Congress of Plastic Surgery. Antalya, Turkey

13. Gundogan H, Gurler T, Alper M, Celik N, Akin Y, Cagdas A, Kandiloglu G. Giant schwannoma in the upper extremity. Case report. 18. September 4-8, 1996. 18th National Congress of Plastic Surgery. Bursa, Turkey