96
Data collected on patients seen from September 1 , 1996 , to December 31 , 1997 , included the cause of the pulmonary hypertension and its severity .
 Disease: pulmonary hypertension
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: pulmonary hypertension