We did not notice any open rhinolalia , dysphagia and dysphonia .
未发现任何开放性鼻音、吞咽困难和发音困难。
Symptoms include hyperventilation , coughing , dysphonia , anorexia , chest pain and increased susceptibility to tuberculosis .
症状包括换气过度、咳嗽、发声困难、食欲不振、胸口疼痛,同时容易罹患肺结核。
Another potential cause is muscle tension dysphonia , which occurs when the muscles around the larynx , or voice box , are too tight and causes a person to use excess tension while speaking .