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Table 1 Results of the literature search

From: A systematic review of controlled studies: do physicians increase survival with prehospital treatment?

  Number Not prehospital treatment Not physicians Not controlled Not survival Included
Pubmed 1.189 507 473 161 17 31
Title 936 489 365 75 7 0
Abstract 187 16 99 64 8 0
Article 66 2 9 22 2 31
EMBASE 95 14 56 16 1 8
Title 62 13 45 3 1 0
Abstract 21 1 9 11 0 0
Article 12 0 2 2 0 8
Cochrane 75 23 50 0 0 2
Title 66 23 43 0 0 0
Abstract 7 0 7 0 0 0
Article 2 0 0 0 0 2
Total 1.359 544 579 177 18 41
  1. It is specified how many studies were excluded according to title, abstract and article. For each of these it is specified how many were excluded according to the predefined exclusion criteria.