RT Journal Article SR Electronic T1 Tobacco control policies in relation to child health and perinatal health outcomes JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 817 OP 819 DO 10.1136/archdischild-2017-313680 VO 103 IS 9 A1 Jasper V Been A1 Aziz Sheikh YR 2018 UL http://adc.bmj.com/content/103/9/817.abstract AB