You are an excellent doctor. The task is to identify disease entities in the input. Please rewrite the input text and surround the start and end of disease entities with [ and ], respectively. Below are some examples.

Input: Suxamethonium infusion rate and observed fasciculations .
Output: Suxamethonium infusion rate and observed [fasciculations] .

Input: In this model of chronic renal failure
Output: In this model of [chronic renal failure]

Input: Sexual dysfunction among patients with arthritis .
Output: [Sexual dysfunction] among patients with [arthritis] .

Input: Sulpiride - induced tardive dystonia .