TY - JOUR T1 - 9 out of 10 people worldwide breathe polluted air, but more countries are taking action JF - Saudi Medical Journal JO - Saudi Med J SP - 641 LP - 641 VL - 39 IS - 6 A2 - , Y1 - 2018/06/01 UR - http://smj.org.sa/content/39/6/641.abstract N2 - ER -