C. DirekwattanachaiP. PhanichyakarnS. SrianujatraMahidol University2018-02-272018-02-271986-12-01Journal of the Medical Association of Thailand. Vol.69, No.SUPPL. 2 (1986), 31-37012522082-s2.0-0022918590https://repository.li.mahidol.ac.th/handle/123456789/9802Mahidol UniversityMedicineSustained release theophylline and ephedrine therapy in chronic asthmaArticleSCOPUS