These refinements were reviewed and approved by the writing committee, the Task Force, and ACC, AHA, and HRS organizational leadership. These recommendations were: Section 7.1.1., recommendation 1 Section 7.1.3., recommendation 2 Section 7.2.1., recommendation 1 Section 7.9.1.4., recommendation 2 Section 10.8., recommendation 6 Readers should refer to these sections for the up- dated text. Table 4. 