title: Methodological problems in drug interactions.
mesh_terms: D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D004347:Drug Interactions; D006385:Hemagglutination Inhibition Tests; D007118:Immunoassay; D007124:Immunoenzyme Techniques; D013058:Mass Spectrometry; D004364:Pharmaceutical Preparations / Q000032:analysis* / Q000302:isolation & purification; D011863:Radioimmunoassay; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013057:Spectrum Analysis
chemical_list: D004364:Pharmaceutical Preparations