SELECT Dyspnoea.d, SUM(Dyspnoea.p*Either.p*Tuberculosis.p*Asia.p*p*Smoking.p*Bronchitis.p) --SELECT Dyspnoea.d, SUM(((Dyspnoea.p*Either.p*Tuberculosis.p*Asia.p)+(Dyspnoea.p*Either.p*LungCancer.p*Smoking.p)) + (Dyspnoea.p*Bronchitis.b*Smoking.p)) SELECT Dyspnoea.d, SUM(Dyspnoea.p*Either.p*Tuberculosis.p*Asia.p*p*Smoking.p*Bronchitis.p) FROM Dyspnoea INNER JOIN Either ON Dyspnoea.e = Either.e INNER JOIN Tuberculosis ON Either.t = Tuberculosis.t INNER JOIN Asia ON Tuberculosis.a = Asia.a INNER JOIN LungCancer ON Either.l = LungCancer.l INNER JOIN Bronchitis ON Dyspnoea.b = Bronchitis.b INNER JOIN Smoking ON LungCancer.s = Smoking.s AND Bronchitis.s = Smoking.s WHERE Asia.a = 1 AND Smoking.s = 0 GROUP BY Dyspnoea.d