87757
APTA is open to all developing members of the United Nations Economic and Social Commission for Asia and the Pacific , which serves as the APTA Secretariat .
 United Nations Economic and Social Commission for Asia and the Pacific
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United Nations Economic and Social Commission for Asia and the Pacific