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The high tumor angiogenic potential was associated with an elevated VEGF / VPF protein expression in the E2 exposed pituitary of ovariectomized ( OVEX ) rats .
 Disease: tumor; Chemical: E2
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: tumor; Chemical: E2