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World Health Assembly, 31 ,  [Method of work of the Health Assembly - I]

World Health Assembly, 31 ,  [Message of sympathy to the Italian Government]

World Health Assembly, 31 ,  [Financial report on the accounts of WHO for 1977，and report of the external auditor]

World Health Assembly, 31 ,  [Contract of the Director-General]

World Health Assembly, 31 ,  [Appointment of the Director-General]