4535
Risk for valvular heart disease among users of fenfluramine and dexfenfluramine who underwent echocardiography before use of medication .
 Disease: valvular heart disease; Chemical: fenfluramine; Chemical: dexfenfluramine
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: valvular heart disease; Chemical: fenfluramine; Chemical: dexfenfluramine