mpumalangabased medical practitioner dr midah maluleka says: "there is an extra number 21 chromosome (trisomy 21) which causes delays in physical and intellectual development.

setsebi sa tša bongaka seo se šomelago mpumalanga ngaka midah maluleka o bolela gore "go nale tlhamego ya seagamme le sa tlaleletšo sa bo21 ( trisomy 21) seo se hlolago go diega kgolong ya mmele le ya kgopolo.
