1. 3. See (last visited July 9, 2019).
2. “Procalcitonin to Initiate or Discontinue Antibiotics in Acute Respiratory Rract Infections,”;Schuetz;Cochrane Database of Systematic Reviews,2017
3. Supplemental oxygen for caesarean section during regional anaesthesia
4. “Tailored Interventions Based on Exhaled Nitric Oxide Versus Clinical Symptoms for Asthma in Children and Adults,”;Petsky;Cochrane Database of Systematic Reviews,2009
5. “Pharmaco-therapy for Smoking Cessation: Effects by Subgroup Defined by Genetically Informed Biomarkers,”;Schuit;Cochrane Database of Systematic Reviews,2017