1655
The phototoxicity was assessed in vitro by the 3T3 NRU phototoxicity test ( 3T3 - NRU - PT ) and subsequently in a phototoxicity test on reconstructed human skin model ( H3D - PT ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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