American Society of Hematology 2021 guidelines on the use of anticoagulation for thromboprophylaxis in patients with COVID-19.

"Guideline funding and management of conflicts of interest Development of these guidelines was wholly funded by ASH, a nonprofit medical specialty society that represents hematologists. Direct funding by for-profit companies was not accepted. ASH staff supported panel appointments and coordinated meetings but had no role in choosing the guideline questions or determining the recommendations. Through funding by ASH to the McMaster University GRADE Centre, some of the researchers who contributed to the systematic evidence reviews received salary or grant support. Other researchers participated to fulfill requirements of an academic degree or program. The guideline panel received no payments or reimbursements from ASH for their work on these guidelines. Conflicts of interest of all participants were managed according to ASH policies based on recommendations of the Institute of Medicine55 and GIN.7 Participants disclosed all financial and nonfinancial interests relevant to the guideline topic. ASH staff and the ASH Guideline Oversight Subcommittee reviewed the disclosures and composed the guideline panel to include a diversity of expertise and perspectives and to avoid a majority of the panel having the same or similar conflicts. Greatest attention was given to conflicts from direct financial interests in for-profit companies that could be affected by the guidelines. During the guideline-development process, all members of the guideline panel and all members of the systematic review team avoided direct financial interests in for-profit health care companies more than $5000 per year regardless of relevance to the guideline topic. Supplemental File 4 provides “Participant Information Forms” for all panel members, detailing financial and nonfinancial interests, as well as the ASH conflict-of-interest policies agreed to by each individual. Supplemental File 5 provides the complete Participant Information Forms of researchers on the systematic review team who contributed to these guidelines."