RT Journal Article SR Electronic T1 Sodium cromoglycate in childhood asthma JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 331 OP 331 DO 10.1136/thorax.56.4.331 VO 56 IS 4 A1 A EDWARDS A1 S HOLGATE A1 J HOWELL A1 J WARNER A1 M STEVENS A1 N ÅBERG A1 B CALLAGHAN A1 Y IIKURA A1 P KÖNIG A1 D REINHARDT A1 B STENIUS-AARNIALA A1 E WEINBERG YR 2001 UL http://thorax.bmj.com/content/56/4/331.1.abstract AB