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   Papers

1. Sumathipala A, Fernando DJS, Siribaddana SH, Abeysingha MRN, Jayasekare RW, Dissanayake VHW & De Silva N. Establishing a twin register in Sri Lanka. Twin Research 2000; 3(4): 202-204. [Abstract][PDF]
   

2. Sumathipala A, De Silva N, Siribaddana SH, Abeysinghe MRN & Fernando DJS. Cross cultural adaptation and preliminary validation of a zygosity determination questionnaire for twins in Sri Lanka. Twin Research 2000; 3(4): 205-212. [Abstract][PDF]
   

3. Sumathipala A, Siribaddana SH, De Silva N, Abeysinghe MRN, S. Sivayogam & Fernando DJS. Feasibility of Using Different Approaches for Recruiting Younger Twins to Establish A Population Based Twin Register in Sri Lanka. Twin Research 2001; 4(3): 459-463 [Abstract][PDF]
   

4. Sumathipala A, Siribaddana SH, De Silva N, Fernando DJS, Abeysinghe MRN, Dayaratne R, De Silva D, Warnasuriya N & Hotopf M. Sri Lankan Twin Registry. Twin Research - supplement on twin registries. 2002 ; 5(5):424-426 [Abstract][PDF]
   

5. Sumathipala A, Siribaddana SH, Abeysinghe MRN, De Silva N, Fernando DJS, Dayaratne DARK, De Silva D, Warnasuriya ND & Hotopf M. Challenges in Recruiting Older Twins for the Sri Lankan Twin Registry. Twin Research 2003; 6(1): 67-71 [Abstract][PDF]
   

6. Siribaddana SH, Siriwardane WD, Hewage SN, Athukorale ADMD, Sumathipala A & Hotopf M. Update from Sri Lankan Twin Registry: Establishment of a Population-Based Twin Register and Ongoing Project on Common Mental Disorders, Alcohol Abuse and Suicidal Ideations. Twin Research & Human Genetics 2006;9: 868-874 [Abstract] [PDF]

7. Siribaddana SH, Ball HA, Hewage SN, Glozier N, Kovas Y, Dayaratne DARK, Sumathipala A, McGuffin P & Hotopf M. Colombo Twin and Singleton Study (CoTASS): A description of a population based twin study of mental disorders in Sri Lanka. BMC Psychiatry 2008;8:49 [Abstract] [PDF]

   Abstracts

1. Establishing a twin register in Sri Lanka. (Abstract) Twin Research 1998; 1(2): 111.
   

2. Presented as a poster at the 9^th International Conference on Twin Research organised by International Twin Society.
   

3. Establishing a twin register in Sri Lanka. Update
   (Abstract) Proceedings of the annual scientific sessions of the Sri Lanka Medical Association 1999
   

4. Cross cultural adaptation and preliminary validation of a zygosity determination questionnaire for twins in Sri Lanka.
   (Abstract) Proceedings of the annual scientific sessions of the Sri Lanka Medical Association 1999
   

5. Feasibility of Using Different Approaches for Recruiting Twins to Establish A Population Based Twin Register in Research Sri Lanka. Proceedings of the annual scientific sessions of the Sri Lanka Medical Association 2000

6. Sumathipala A. Starting from scratch in Sri Lanka. Twin Research 2001; 4 (3) 209.

7. Nimali De Silva, Athula Sumathipala, Fernando DJS, Abeysingha N, Siribaddana SH, Dayaratne DARK, De Silva D, Warnasuriya NDW. Early Report on The Availability Of Island Wide Twin Data In The Central Birth Registration Department. Twin Research 2001; 4 (3): 179.

8. Dayaratne DARK, Sumathipala A, Fernando DJS, Sisira H Siribaddana Nimali De Silva, Nihal Abeysingha. Feasibility of Using Birth Records for Recruiting Older Twins for the Sri Lankan Twin Registry. Twin Research 2001; 4 (3): 117.

9. Ball HA, Siribaddana S, McGuffin P and Hotopf M. The Heritability of Somatic Symptoms in a Sri Lankan Twin Sample. Twin Research and Human Genetics 2007; 10: 23

10. Hotopf M., Hewage S., and Siribaddana S.H. A Successful Model of a North-South Collaboration.  Twin Research and Human Genetics 2007; 10: 35

11. Sumathipala A. and Siribaddana S. H. Sri Lankan Twin Registry: Challenges, Barriers and Lessons Learned. Twin Research and Human Genetics 2007; 10: 53