22723
Comparable ERG modifications , histopathology and immunohistochemistry findings were observed in the retina of both rat strains suggesting that melanin pigment is unlikely involved . chloroquine - induced impairment of synaptic vesicle transport , likely related to disruption of neurofilaments was identified and non - previously reported .
 Chemical: chloroquine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: chloroquine