1947
OBJECTIVES : Posterior leukoencephalopathy due to calcineurin - inhibitor - related neurotoxicity is a rare but severe complication that results from treatment with immunosuppressive agents ( primarily those administered after a liver or kidney transplant ) .
 Disease: Posterior leukoencephalopathy; Disease: neurotoxicity
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: Posterior leukoencephalopathy; Disease: neurotoxicity