text:  Lawyers for the jailed Kremlin critic Vladimir Kara-Murza say he's in a relatively stable condition after they saw him in a prison hospital for the first time in six days. The dissident suffers from nerve disease, a result, he says, of two poisonings by Russia's security services. Mr Kara-Murza was sent to a Siberian jail for 25 years on the rare charge of treason after denouncing Russia's war in Ukraine.