Goonetilleke, A.K.E.Munasinghe, T.M.J.Cooray, H.C.Balasuriya, W.K.Fernando, N.2016-01-142016-01-142002The Ceylon Medical Journal, 47(02)pp.50-51https://dl.nsf.gov.lk/handle/1/21248Medical SciencesTherapeutic drug monitoringUV spectrophotometryPharmacologyTheophylline blood levelsChronic asthmaticsTheophylline blood levels in Sri Lankan asthmatics. comparison of two methods of assayArticle