Fig. 1From: TOB-STOP-COP (TOBacco STOP in COPd trial): study protocol—a randomized open-label, superiority, multicenter, two-arm intervention study of the effect of “high-intensity” vs. “low-intensity” smoking cessation intervention in active smokers with chronic obstructive pulmonary diseaseSPIRIT figure: overview of assessments that each participant will undergo and the time schedule for the projectBack to article page