985
The aim of the present study was to investigate changes in the plasma calcitonin gene - related peptide ( CGRP ) concentration and platelet serotonin ( 5 - hydroxytriptamine , 5 - HT ) content during the immediate headache and the delayed genuine migraine attack provoked by nitroglycerin .
 Chemical: calcitonin gene - related peptide; Chemical: CGRP; Chemical: serotonin; Chemical: 5 - hydroxytriptamine; Chemical: 5 - HT; Disease: headache; Disease: migraine; Chemical: nitroglycerin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: calcitonin gene - related peptide, CGRP, serotonin, 5 - hydroxytriptamine, 5 - HT, headache, migraine, nitroglycerin 
Answer:
 Chemical: calcitonin gene - related peptide; Chemical: CGRP; Chemical: serotonin; Chemical: 5 - hydroxytriptamine; Chemical: 5 - HT; Disease: headache; Disease: migraine; Chemical: nitroglycerin