This report apparently focuses on financial conflict of interests, especially where there is a potential for patient harm.
According to the press release that announced the report:"The report calls on researchers, medical school faculty, and private-practice doctors to forgo gifts of any amount from medical companies and to decline to publish or present material ghostwritten or otherwise controlled by industry. Consulting arrangements should be limited to legitimate expert services spelled out in formal contracts and paid for at a fair market rate. Physicians should limit their interactions with company sales representatives and use free drug samples only for patients who cannot afford medications."
The report is available free from the Institute of Medicine website but I am afraid I have not read all 300 odd pages. If anyone has and can comment further, please do add to this posting