Fig. 2From: Dosimetrically administered nebulized morphine for breathlessness in very severe chronic obstructive pulmonary disease: a randomized, controlled trialMean visual analogue scale breathlessness scores for Groups 1 and 2. VAS, visual analogue scale; baseline, breathlessness assessment made on the first day of treatment, before nebulization. Mean visual analogue scale breathlessness scores for 8 days were calculated from visual analogue scale scores taken in fourth hour after nebulization Back to article page