RT Journal Article SR Electronic T1 Personal monitoring to reduce exposure to black carbon in children with asthma: a pilot study JF ERJ Open Research JO erjor FD European Respiratory Society SP 00482-2021 DO 10.1183/23120541.00482-2021 VO 7 IS 4 A1 Lee Koh A1 Jonathan Grigg A1 Abigail Whitehouse YR 2021 UL http://openres.ersjournals.com/content/7/4/00482-2021.abstract AB