However, the low prevalence of injuries among UEFA level referees may be explained by their greater physical fitness and by officially prescribed and supervised UEFA training, overall professionalism, and regular medical assistance.
This can be explained by different scenarios.
This could be explained by human selection.
Meanwhile, prospective investigations show a much higher incidence of injury (up to 20 injuries per 1000 hours of refereeing) [ 25, 30], which is explained by the recall-bias [ 36].
Another way in which editors contribute to publication bias was explained by the fact that "we have so many articles coming through... there is an element of pre-refereed selection of papers that never get to a referee".
This represents a greater proportion of injury than the 69 71% previously reported in Gaelic football players [ 9, 13, 14], a trend which may be partly explained by the absence of upper limb injuries in this referee cohort.
This difference was not explained by diet.
Explained by: Being made over again".
The referee, Ruby Goldstein, was the first victim of the heat, and had to be replaced by referee Ray Miller.
Fouls are called by referees, and referees in almost every sport have historically demonstrated a notorious home-team bias.
