Comparison of the efficacy and adverse effects of unilateral or bilateral botulinum toxin injections for adductor spasmodic dysphonia: a systematic review and meta‑analysis
Yuyin Liu · Feifei Chen · Fangqi Liang · Can Wang · Dan Chen · Jing Zhou · Lu Zhang · Xiao Xiao · Ronghua He · Li Tang · Li Tian · Li Zhou