Fig. 4: Recording of smoking data during annual scheduled asthma contacts.

Smoking data recording in all scheduled asthma contacts (n = 603) in primary health care during 12-year follow-up among 152 patients with adult-onset asthma.

Smoking data recording in all scheduled asthma contacts (n = 603) in primary health care during 12-year follow-up among 152 patients with adult-onset asthma.