Has every clinical death survivor had a near death experience?

Not at all, many people who clinically died had no experience that they can remember. Also, a large number of people who have reported an NDE-like experience were not even close to death or sick at the time. They may have been under great stress, praying or meditating, sleeping, or in ordinary situations. Researchers are realizing that the so-called NDE is really part of a larger category of visionary experiences. Here are some statistics from iands.org (International Assoc. for Near-Death Studies):
--Surveys taken in the US, Australia and Germany suggest that 4% to 15 % of the population have had NDEs.
--Every day in the U.S., 774 NDEs occur, according to the Near-Death Experience Research Foundation (NDERF).
--Of more than 800 near-death experiencers (NDErs) reporting to IANDS, 25% believed they were clinically dead at the time of their NDE.
--A large study conducted in the Netherlands showed that 18% of people who suffered a cardiac arrest and were clinically dead had later reported an NDE.

Please spare me some time. I have to do some exercise for this purpose.

Let me first try to talk to few of them. I want to hear from horse's mouth.