RT Journal Article SR Electronic T1 Complex interplay between greenness and air pollution in respiratory health JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 856 OP 857 DO 10.1136/thoraxjnl-2021-217272 VO 76 IS 9 A1 Elaine Fuertes A1 Debbie Jarvis YR 2021 UL http://thorax.bmj.com/content/76/9/856.abstract AB