E, re fana ka tiisetso ea lilemo tse 2-5 lihlahisoa tsa rona. 'Me lihlahisoa tsa rona li hlahisoa tlas'a tsamaiso e thata ea taolo ea boleng,' me sekhahla se nang le bokooa se tla ba tlase ho 0.2%.

Ka kopo romella kopo ea hau ho lengolo-tsoibila la rona:[imeile e sirelelitsoe] Betterled e na le liakhaonto tse ngata tse kholo tsa litaba tsa sechaba, o ka re fa le li-account tsa hau tsa litaba tsa sechaba, mme o re lumelle hore re ikopanye le uena.