<prompt> Kulingana na utafiti uliochapishwa katika kitabu cha A Textbook for the Clinical Application of Therapeutic Drug Monitoring: A Useful Clinical Application of Serum Drug Concentration Measurement is Currently Restricted to a Surprisingly Small Number of Drugs and Requires a Thorough Understanding of the Pharmacokinetic Properties of These Drugs, utafiti huo unaonyesha kwamba dawa za kulevya zinatumiwa kwa kiasi kikubwa.  <response>: A Textbook for the Clinical Application of Therapeutic Drug Monitoring inatoa muhtasari kamili wa manufaa na mapungufu ya ufuatiliaji wa dawa za matibabu, na kuzingatia uwezo wa kutumia vipimo vya viwango vya madawa ya kulevya ya seramu ili kuboresha maamuzi ya kliniki kuhusu matibabu ya madawa ya kulevya. A Textbook for the Clinical Application of Therapeutic Drug Monitoring is to provide a comprehensive review of the assay methods used in measuring drug concentrations in biological fluids. 