National Drug Data File	Anatomical Therapeutic Chemical Classification	Source
http://purl.bioontology.org/ontology/NDDF/001820	http://purl.bioontology.org/ontology/ATC/S01FB02	CUI
http://purl.bioontology.org/ontology/NDDF/001820	http://purl.bioontology.org/ontology/ATC/R01AB05	CUI
http://purl.bioontology.org/ontology/NDDF/001820	http://purl.bioontology.org/ontology/ATC/R01AA03	CUI
http://purl.bioontology.org/ontology/NDDF/001820	http://purl.bioontology.org/ontology/ATC/R03CA02	CUI
http://purl.bioontology.org/ontology/NDDF/001820	http://purl.bioontology.org/ontology/ATC/C01CA26	CUI
http://purl.bioontology.org/ontology/NDDF/013302	http://purl.bioontology.org/ontology/ATC/L01EX03	CUI
http://purl.bioontology.org/ontology/NDDF/005789	http://purl.bioontology.org/ontology/ATC/J01MA09	CUI
http://purl.bioontology.org/ontology/NDDF/004721	http://purl.bioontology.org/ontology/ATC/C01CA04	CUI
http://purl.bioontology.org/ontology/NDDF/010773	http://purl.bioontology.org/ontology/ATC/A10BJ02	CUI
http://purl.bioontology.org/ontology/NDDF/000935	http://purl.bioontology.org/ontology/ATC/V06B	CUI
http://purl.bioontology.org/ontology/NDDF/003007	http://purl.bioontology.org/ontology/ATC/J04BA01	CUI
http://purl.bioontology.org/ontology/NDDF/018187	http://purl.bioontology.org/ontology/ATC/D02BB02	CUI
http://purl.bioontology.org/ontology/NDDF/013772	http://purl.bioontology.org/ontology/ATC/J05AP03	CUI
http://purl.bioontology.org/ontology/NDDF/006403	http://purl.bioontology.org/ontology/ATC/R01AC08	CUI
http://purl.bioontology.org/ontology/NDDF/006403	http://purl.bioontology.org/ontology/ATC/S01GX09	CUI
http://purl.bioontology.org/ontology/NDDF/000842	http://purl.bioontology.org/ontology/ATC/B05XA12	CUI
http://purl.bioontology.org/ontology/NDDF/001430	http://purl.bioontology.org/ontology/ATC/N05CM08	CUI
http://purl.bioontology.org/ontology/NDDF/001464	http://purl.bioontology.org/ontology/ATC/N05BA12	CUI
http://purl.bioontology.org/ontology/NDDF/002992	http://purl.bioontology.org/ontology/ATC/P03AX01	CUI
http://purl.bioontology.org/ontology/NDDF/003622	http://purl.bioontology.org/ontology/ATC/M01AX01	CUI
http://purl.bioontology.org/ontology/NDDF/003135	http://purl.bioontology.org/ontology/ATC/D06BA01	CUI
http://purl.bioontology.org/ontology/NDDF/000931	http://purl.bioontology.org/ontology/ATC/B05XB03	CUI
http://purl.bioontology.org/ontology/NDDF/007284	http://purl.bioontology.org/ontology/ATC/L04AC01	CUI
http://purl.bioontology.org/ontology/NDDF/013513	http://purl.bioontology.org/ontology/ATC/M04AX02	CUI
http://purl.bioontology.org/ontology/NDDF/003750	http://purl.bioontology.org/ontology/ATC/C05CA04	CUI
http://purl.bioontology.org/ontology/NDDF/007996	http://purl.bioontology.org/ontology/ATC/C01BD04	CUI
http://purl.bioontology.org/ontology/NDDF/002398	http://purl.bioontology.org/ontology/ATC/M01CB03	CUI
http://purl.bioontology.org/ontology/NDDF/005927	http://purl.bioontology.org/ontology/ATC/M04AX01	CUI
http://purl.bioontology.org/ontology/NDDF/002923	http://purl.bioontology.org/ontology/ATC/D01AC03	CUI
http://purl.bioontology.org/ontology/NDDF/002923	http://purl.bioontology.org/ontology/ATC/G01AF05	CUI
http://purl.bioontology.org/ontology/NDDF/005317	http://purl.bioontology.org/ontology/ATC/N05AA07	CUI
http://purl.bioontology.org/ontology/NDDF/009029	http://purl.bioontology.org/ontology/ATC/G03GA08	CUI
http://purl.bioontology.org/ontology/NDDF/006635	http://purl.bioontology.org/ontology/ATC/R03CC05	CUI
http://purl.bioontology.org/ontology/NDDF/006635	http://purl.bioontology.org/ontology/ATC/R03AC06	CUI
http://purl.bioontology.org/ontology/NDDF/003051	http://purl.bioontology.org/ontology/ATC/J06AA04	CUI
http://purl.bioontology.org/ontology/NDDF/009549	http://purl.bioontology.org/ontology/ATC/B01AX05	CUI
http://purl.bioontology.org/ontology/NDDF/018070	http://purl.bioontology.org/ontology/ATC/L02BB06	CUI
http://purl.bioontology.org/ontology/NDDF/004845	http://purl.bioontology.org/ontology/ATC/J01DD01	CUI
http://purl.bioontology.org/ontology/NDDF/002964	http://purl.bioontology.org/ontology/ATC/P01CD01	CUI
http://purl.bioontology.org/ontology/NDDF/009081	http://purl.bioontology.org/ontology/ATC/R06AX27	CUI
http://purl.bioontology.org/ontology/NDDF/014910	http://purl.bioontology.org/ontology/ATC/L01FD03	CUI
http://purl.bioontology.org/ontology/NDDF/018242	http://purl.bioontology.org/ontology/ATC/N05CJ02	CUI
http://purl.bioontology.org/ontology/NDDF/004428	http://purl.bioontology.org/ontology/ATC/N06AX16	CUI
http://purl.bioontology.org/ontology/NDDF/002918	http://purl.bioontology.org/ontology/ATC/G01AF04	CUI
http://purl.bioontology.org/ontology/NDDF/002918	http://purl.bioontology.org/ontology/ATC/J02AB01	CUI
http://purl.bioontology.org/ontology/NDDF/002918	http://purl.bioontology.org/ontology/ATC/A07AC01	CUI
http://purl.bioontology.org/ontology/NDDF/002918	http://purl.bioontology.org/ontology/ATC/S02AA13	CUI
http://purl.bioontology.org/ontology/NDDF/002918	http://purl.bioontology.org/ontology/ATC/D01AC02	CUI
http://purl.bioontology.org/ontology/NDDF/002918	http://purl.bioontology.org/ontology/ATC/A01AB09	CUI
http://purl.bioontology.org/ontology/NDDF/004366	http://purl.bioontology.org/ontology/ATC/A05BA03	CUI