Pfizer has announced that it will start reporting payments to doctors, part of the growing trend of transparency around the financial ties between doctors and industry. Sen. Chuck Grassley has been looking into undisclosed payments and pushing a bill that would require broad disclosures from industry, as well. But Grassley's Physician Payment Sunshine Act would be still more stringent than the companies' self-imposed disclosure policies, at least in a few respects, according to this Wall Street Journal Health Blog posting.