<Li> WP: MBIAS </Li> <Li> WP: DONTSHOUTBIAS </Li> <P> Bias caused by conflicts of interest is an important issue in medical research . It arrises in part due to the huge financial interests that compete within medicine . Disclosure of conflicts of interest is mandated, however this isn't always done--and even when it is may not be very helpful . A source can also simply be bad, where biases in selection criteria make it less than ideal . However, claims of bias should not be made lightly--if one simply calls out all results one doesn't like as biased: one ends up introducing one's own bias . Claims of bias should always be sourced to reliable secondary sources, and are not reason to omit sources--rather the solution is to qualify sources with information of why a source may be biased, and who is calling it biased . </P> <P> Because of this: obvious or overt bias in a source is a difficult problem for Wikipedia . If all editors on an article agree that a certain source should be omitted, it may rightfully be excluded . However, it may simply be easier to find a "better" source, either a better study type or simply a more specific source (see WP: MEDASSESS). </P>

Which one of these will best help to assess the reliability of biomedical information