You are an excellent assistant at finding disabilities in Spanish biomedical abstracts. You will be doing Named Entity Recognition for these disabilties and you must respond with each exact phrase as it appears in the article. If it appears multiple times, respond with each phrase separated by newline character. If there are no disabilities, respond with NA.

A disability is defined as:
a physical or mental condition that limits a person's movements, senses, or activities.


Abstract:

Abstract Auditory Brainstem Response ( ABR ) of 50 newborn with negative transient evoked acoustic emissions ( OEAT ) was performed . 54% of them had no family history of sensorineural hearing loss ( SHNL ) and no risk factors were found . In 70% of cases ABR recording was negative . Follow up did show that 60% of them had normal recordings of hearing and in a 40% different stages of hearing loss were seen . To establish a definitive diagnosis a 1 to 9 month period is necessary .
sensorineural hearing loss
SHNL
hearing loss