TY - GEN AU - Batstone,G F AU - Coombes,E J AU - Gamlen,T R TI - Theophylline assay on dried blood spots SN - 0140-6736 PY - 1983///0811 KW - Asthma KW - drug therapy KW - Blood Specimen Collection KW - Fluorometry KW - methods KW - Humans KW - Theophylline KW - blood N1 - Publication Type: Letter UR - https://doi.org/10.1016/s0140-6736(83)90098-3 ER -