| # | Query | Results |
|---|---|---|
| S1 | (MH “Dystonic disorders“) OR (MH “Dystonia”) OR (dystoni* or cramp*) | 4,475 |
| S2 | (MH “Upper extremity”) OR (MH “Hand+”) OR (hand* or finger* or wrist* or phalanx or phalanges or digit or digits or digital or thumb* or palm* or digitorum or carpi or carpal* or metacarpal* or pollicis or interphalangeal or stenographer* or writer* or typist* or telegraphist* or musician* or clarinet* or flautist* or flutist* or flute or oboe or oboist* or saxophone or saxophonist* or bagpipe* or bassoon or bassoonist* or guitar or guitarist* or bass or bassist* or banjo* or harp or harpist* or zither* or mandolin* or koto* or string player* or violin or violinist* or viola or violist* or cello or cellist* or keyboard* or pianist* or piano* or organist* or harpsichord* or accordion* or percussion* or drummer* or tabla* or bata or brass or trumpet* or trombon* or tuba or hornplayer* or barber* or beautician* or golfer*) | 160,193 |
| S3 | S1 AND S2 | 496 |
| S4 | (MH “Focal hand dystonia”) OR ((focal and dystoni* and (limb* or extremit*)) or yips) | 168 |
| S5 | S3 OR S4 | 561 |
| S6 | (MH “Botulinum toxins”) OR (Botox or BTX or botulin* or Meditoxin or Neuronox or Oculinum or OnabotulinumtoxinA or Abobotulinumtoxina or Evabotulinumtoxina or Incobotulinumtoxina or Allergan or Azzalure or Bocouture or Botox or Dysport or Onaclostox or “Toxine botulinique” or Vistabel or Xeomin or rimabotulinum* or Myobloc or NeuroBloc or Bontoxilysin or Tentoxilysin or “Tetanus neurotoxin”) | 5,028 |
| S7 | S5 AND S6 | 82 |
| S8 | ((MH “Random Assignment”) or (MH “Random Sample+”) or (MH “Crossover Design”) or (MH “Clinical Trials+”) or (MH “Comparative Studies”) or (MH “Control (Research)+”) or (MH “Control Group”) or (MH “Factorial Design”) or (MH “Quasi-Experimental Studies+”) or (MH “Placebos”) or (MH “Meta-Analysis”) or (MH “Sample Size”) or (MH “Research, Nursing”) or (MH “Research Question”) or (MH “Research Methodology+”) or (MH “Evaluation Research+”) or (MH “Concurrent Prospective Studies”) or (MH “Prospective Studies”) or (MH “Nursing Practice, Research-Based”) or (MH “Solomon Four-Group Design”) or (MH “One-Shot Case Study”) or (MH “Pretest-Posttest Design+”) or (MH “Static Group Comparison”) or (MH “Study Design”) or (MH “Clinical Research+”)) or (clinical nursing research or random* or cross?over or placebo* or control* or factorial or sham* or meta?analy* or systematic review* or blind* or mask* or trial*) | 2,107,928 |
| S9 | S7 AND S8 | 46 |