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 Level 4
 
 D - DermatologicalsD10 - Anti-acne preparationsD10A - Anti-acne preparations for topical useD10AD - Retinoids for topical use in acne
 
 D10AD01 - TretinoinD10AD02 - RetinolD10AD03 - AdapaleneD10AD04 - IsotretinoinD10AD05 - MotretinideD10AD51 - Tretinoin, combinationsD10AD53 - Adapalene, combinationsD10AD54 - Isotretinoin, combinations
 
 
 
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