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It has been stated that it is not the lack of financial means that hinders progress in medical research, but rather the lack of ideas. This may be so also in the headache field. If viewed from the outside, much of the research activity in this field over the past decades may be considered repetitions or only slight variations on old themes, without any breakthroughs. The abnormalities that have been discovered are mostly consequences and not causes of the actual headache. The research strategy with regard to the various headache forms is an important but also a most sensitive topic. Individual backgrounds, previous experience, present setting and facilities, and even, to some extent, bias mingle to form the entire scientific approach of a given group.
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Sjaastad et al. (1987) studied this question.
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