text_1: 3-year-old boy born at 24-weeks gestation.  Has cerebral palsy.  Mother is taking him for hyperbaric oxygen treatment.  I (investigator) said, "This may not be a question for you but it is for me, whether hyperbaric oxygen treatment is effective for this."  He (physician) said he didn't know either but he doesn't think so.
text_2: Is hyperbaric oxygen effective for cerebral palsy?