1. Grading of scientific evidence—Table 1: efficacy/effectiveness of pertussis vaccines in immunocompetent infants and children. Available at: 〈http://www.who.int/immunization/position_papers/pertussis_grad_efficacy〉 [accessed October 23, 2015].
2. Grading of scientific evidence—Table 2: safety of pertussis vaccines in immunocompetent infants and children. Available at: 〈http://www.who.int/immunization/position_papers/pertussis_grad_safety〉 [accessed October 23, 2015].
3. Grading of scientific evidence—Table 3: evidence to recommendations table: what is the effect of wP vaccine on clinically important outcomes and harms, compared to aP vaccine? Available at: 〈http://www.who.int/immunization/position_papers/pertussis_grad_evidence_recommendations〉 [accessed October 23, 2015].