Table 2.

Structures involved in the development of the ESO guidelines.

	Guideline board (GB)	Module working group (MWG)
Number of members	• One chair and one co-chair• Guideline development subcommittee: 10 members including chair and co-chair; more non-voting members may be also included• Guideline publication subcommittee (2 voting members)• Guideline Workshop subcommittee (2 voting members)	• Usually (see text) ≤10 experts, who will be allowed to vote in expert consensus statements. Exception can occur after approval by the GB and EC • One leader; a co-leader may also be appointed
Tasks	• Decision to launch a topic for a Guideline Document in reconcilement with EC• Election of the MWG leader and approval of the module working group• Critical review and approval guideline documents• Decision about translation of a Guideline Document and approval of translated Guideline Documents• Decision about parallel publication of a Guideline Document• Decision to update an existing guidelines• Organise Guideline Board Meetings• Amendment of the SOP	• Develop or update a guideline according to this SOP• Suggest about parallel publication of a guideline • Scan major stroke-related journals and inform the GC about new data which may change existing recommendations