title: Antitumor agents from Bursera microphylla (Burseraceae) I. Isolation and characterization of deoxypodophyllotoxin.
mesh_terms: D000970:Antineoplastic Agents / Q000032:analysis* / Q000494:pharmacology; D002294:Carcinoma, Squamous Cell; D002845:Chromatography; D002855:Chromatography, Thin Layer; D046508:Culture Techniques; D006801:Humans; D007259:Infrared Rays; D010936:Plant Extracts / Q000032:analysis; D012822:Silicon Dioxide; D013053:Spectrophotometry; D013057:Spectrum Analysis; D013261:Sterols / Q000032:analysis; D014197:Trees / Q000032:analysis*
chemical_list: D000970:Antineoplastic Agents; D010936:Plant Extracts; D013261:Sterols; D012822:Silicon Dioxide