Private doctors have called on the government to regulate against unsuitable clauses in medical insurance schemes that could put patients at risk..."It is not simply a matter of money but of life and death,"...Medical Association chairman Choi Kin...said...[quoting] a report by the Medical Council [as saying] that a major insurance company...had imposed "unreasonable conditions" on doctors...limiting the number of repeat visits a patient can make to clinics...The Medical Council warned these clauses would lower the standard of heath care to a dangerous level.