Procedural and Physical Interventions for Vaccine Injections: Systematic Review of Randomized Controlled Trials and Quasi-Randomized Controlled Trials.
Taddio A, Shah V, McMurtry CM, MacDonald NE, Ipp M, Riddell RP, Noel M, Chambers CT. Procedural and Physical Interventions for Vaccine Injections: Systematic Review of Randomized Controlled Trials and Quasi-Randomized Controlled Trials. Clin J Pain. 2015 Oct; 31(10 Suppl):S20-37.