Ball, Harriet A.; Siribaddana, Sisira H.; Sumathipala, Athula; Kovas, Yulia; Glozier, Nick; McGuffin, Peter and Hotopf, Matthew. 2010. Environmental exposures and their genetic or environmental contribution to depression and fatigue: a twin study in Sri Lanka. BMC Psychiatry, 10(1), 13. ISSN 1471-244X [Article]

Gregory, Alice M.; Ball, Harriet A. and Button, Tanya M.. 2010. Behavioural Genetics. In: Peter K. Smith and Craig Hart, eds. The Wiley-Blackwell Handbook of Childhood Social Development, 2nd Edition. London and Hoboken, NJ: Wiley-Blackwell, pp. 27-43. ISBN 978-1-4051-9679-6 [Book Section]

Ball, Harriet A.; Siribaddana, Sisira H.; Kovas, Yulia; Glozier, Nick; McGuffin, Peter; Sumathipala, Athula and Hotopf, Matthew. 2010. Epidemiology and symptomatology of depression in Sri Lanka: A cross-sectional population-based survey in Colombo District. Journal of Affective Disorders, 123(1-3), pp. 188-196. ISSN 01650327 [Article]

Ball, Harriet A.; Sumathipala, Athula; Siribaddana, Sisira H.; Kovas, Yulia; Glozier, Nick; McGuffin, Peter and Hotopf, Matthew. 2009. Genetic and environmental contributions to depression in Sri Lanka. The British Journal of Psychiatry, 195(6), pp. 504-509. ISSN 0007-1250 [Article]

Siribaddana, Sisira H.; Ball, Harriet A.; Hewage, Suwin N.; Glozier, Nick; Kovas, Yulia; Dayaratne, Dark; Sumathipala, Athula; McGuffin, Peter and Hotopf, Matthew. 2008. Colombo Twin and Singleton Study (CoTASS): A description of a population based twin study of mental disorders in Sri Lanka. BMC Psychiatry, 8(1), 49. ISSN 1471-244X [Article]