मोननै बिजिरनायफोर, गोरबोयाव थानाय सामाव जाय जाजेननाया जुनियायै जोउनगोनां आरो जायफोरा गोरबायाव थानाय समाव एबा जोनोमाव जागायनाया सरासनस्रायै गोबांसिन जाउनगोनांनि।
Two studies which began in the antenatal period were particularly effective and those starting in the antenatal period or at birth were generally of greater effectiveness.