<prompt> WHO headquarters of Southeast Asia is at:New DelhiCeylonKatmanduIslamabad  <response>: HEADQUARTERSAfrican region - Brazzaville, CongoRegion of the Americas - Washington D.C, USASoutheast Asia Region - New Delhi, IndiaEuropean Region - Copenhagen, DenmarkEastern Mediterranean Region - Cairo, EgyptWestern Pacific Region - Manila, PhilippinesEssentials of preventive and community dentistry Soben Peter 5th edition 