7Zubairi AB, Salahuddin N, Khawaja A, et al. A randomized, double -blind, placebo-controlled trial of oral montelukast in a- cute asthma exacerbation [J]. BMC Pulm Med, 2013, 13:20. doi : 10,1186/1471 - 2466 - 13 - 20.
8Hazir T, Das C, Piracha F, et al. Carets' perception of childhood asthma and its management in a selected Pakistani community [J]. Arch Dis Child, 2002, 87(4) :287 -290.
9Pedersen SE, Hurd SS, Lemanske RF Jr, et al. Global strategy for the diagnosis and management of asthma in children 5 years and younger [J]. Pediatr Pulmonol,2011,46( 1 ) :1 - 17.
