KOOYUAN ke e mong oa baetsi le barekisi ba li-peptide tse hloahloa ka ho fetesisa Chaena. Haeba o tlo reka kapa o reka li-peptide tsa boleng bo holimo ka bongata setokong, rea u amohela ho fumana lethathamo la litheko le sampole ea mahala fekthering ea rona. Hape, litšebeletso tse khethehileng lia fumaneha.

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