<classify> NgoMsombuluko, usosayensi wase-Stanford University School of Medicine umemezele ithuluzi Elisha elikwazi ukuhlukanisa amagqamuzane ngezinhlobo zawo: ucezwana oluncane olunyathelisekayo olungakhandwa ngokusebenzisa imishini evamile yokunyathelisa ngokusesilinganisweni ngesenti elilodwa laseMelika.  <topic>: health 