28139
These results make compounds 39 - 42 suitable candidates for ( i ) PET imaging of melanoma after labelling with fluorine - 18 and ( ii ) targeted radionuclide therapy of disseminated melanoma after labelling with iodine - 131 .
 Chemical: fluorine - 18; Chemical: iodine - 131
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: fluorine - 18; Chemical: iodine - 131