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  Indian J Med Microbiol
 

Figure 3: High-performance liquid chromatography chromatograms of DF formula. 1: (+)-pseudoephedrine; 2: (-)ephedrine; 3: aloe-emodin; 4: chrysophanol

Figure 3: High-performance liquid chromatography chromatograms of DF formula. 1: (+)-pseudoephedrine; 2: (-)ephedrine; 3: aloe-emodin; 4: chrysophanol