Usually conflicts of interest and funding are disclosed (these days) in the paper. Usually I go there first, before the second step which is reading the methods section.
There are also registers of funding for medical researchers.
Australia
https://ses.library.usyd.edu.au/handle/2123/20224
https://ses.library.usyd.edu.au/handle/2123/20223
US
https://openpaymentsdata.cms.gov/
But it is imperfect
https://www.nytimes.com/2018/12/08/health/medical-journals-conflicts-of-interest.html
and of course disclosure is not a complete answer. Disclosed funding greatly affects the reported results.
Usually conflicts of interest and funding are disclosed (these days) in the paper. Usually I go there first, before the second step which is reading the methods section.
There are also registers of funding for medical researchers.
Australia
https://ses.library.usyd.edu.au/handle/2123/20224
https://ses.library.usyd.edu.au/handle/2123/20223
US
https://openpaymentsdata.cms.gov/
But it is imperfect
https://www.nytimes.com/2018/12/08/health/medical-journals-conflicts-of-interest.html
and of course disclosure is not a complete answer. Disclosed funding greatly affects the reported results.