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The data sources of three types of interactions.
| Data sources | Number of links | Number of entries | Number of entities |
|---|---|---|---|
| Ⅰ(DDS) | 23,052 DDS | 23,052 DDS | 38 drugs, 39 cell lines |
| II(DTIs) | 8,083,600 DTIs | 871 DTIs | 519,022 drugs, 8,934 proteins |
| III(PPIs) | 719,402 PPIs | 5,296 PPIs | 19,085 proteins |
