00534nas a2200205   4500000000100000008004100001100001500042700001900057700001200076700001400088700001300102700001700115700001900132700001600151700001400167245012700181300000800308490000600316050000600322       2008                            d1 aGlozier N.1 aSiribaddana S.1 aBall H.1 aHewage S.1 aKovas Y.1 aDayaratne D.1 aSumathipala A.1 aMcGuffin P.1 aHotopf H.00aColombo Twin and Singleton Study (CoTASS): A description of a population based twin study of mental disorders in Sri Lanka  a49.0 v8  aY