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Mean symptom scores. Mean symptom scores covering a three-week period commencing 20 weeks after starting inhaled sodium cromoglicate treatment. Menstrual bleed occurred during week 2 of this 3-week period. Dosage of inhaled SCG: 80 mg/day during week 1, 160 mg/day during week 2, 80 mg/day during week 3. N.B. 'y' axis shows 0-2 range of 0-4 scale. Key: columns with horizontal lines - week 1; columns with vertical lines - week 2; columns with diagonal lines - week 3.
