title: An orange or lemon as a teaching aid.
authors.forename: T C
authors.initials: TC
authors.lastname: Brown
mesh_terms: D000776:Anesthesiology / Q000193:education*; D032084:Citrus sinensis; D006801:Humans; D009407:Nerve Block; D040521:Subcutaneous Tissue / Q000033:anatomy & histology*; D013663:Teaching