Researchers designing studies to be conducted in host countries outside the u. s. should: design studies to ensure they are in compliance with u. s. federal and state policies, laws and regulations only rather than the local beliefs and practices remember that in some populations an individual cannot make a decision about medical care without the full engagement of relatives, friends and those in authority in the community rely only on the u. s. interpretation of the core principles from the belmont report emphasize the ethical principle of respect for persons as described in the belmont report.