The World Health Organization said that the Swedish findings, though preliminary and limited, indicated a serious problem and offered interim advice.
If NASA had found that the doctors' advice was being ignored in some cases, that would have indicated a serious problem".
It is understood the captain declared a "Pan" - one level short of a "Mayday" - indicating a serious problem but not a life-or-death emergency.
But hiccups can indicate a serious problem, and a prolonged, uncontrollable bout may lead to debilitating consequences like fatigue, weight loss, depression, problems with heart rhythm, esophageal reflux and possibly exhaustion and death in a weakened patient.
Nevertheless, the extent to which action research is published in good journals is infrequent enough to indicate a serious problem.
"At Musgrove Park Hospital, part of Taunton and Somerset NHS Foundation Trust, [Streams'] features will alert doctors and nurses to a potential deterioration in their patients' vital signs that could indicate a serious problem," it writes.
Within weeks of the launch of the telescope, the returned images indicated a serious problem with the optical system.
Specific Symptoms That Mean Your Child (Probably) Needs Therapy (Note: Many of these are rare and/or don't necessarily indicate a serious problem!).
Among these, scores higher than 5 indicate a serious problem with gambling.
