Reducing pain during vaccine injections: clinical practice guideline

Canadian CPG (HELinKS in HELP framework) covering the full bundle: procedural (no aspiration, fast injection, deltoid in older children), physical (upright/skin-to-skin), pharmacological (topical anaesthetic, sucrose), psychological (distraction, neutral language) and process (combine into single visit). Practical algorithm by age. Cited as template for hospital vaccination protocols worldwide.