Mhdi AH. Biochemical Analyzer and Ultra violet visible Spectrophotometer used for the estimation Guaifenesin and Theophylline in blood samples : estimation Guaifenesin and Theophylline in blood samples . J Med Oral Biosci [Internet]. 2024 Jun. 20 [cited 2026 Aug. 29];1(1):18-29. Available from: https://jmob.aliraqia.edu.iq/index.php/jmob/article/view/34