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Table 2 Overview of the amount of scientific publications collected for each plant species after each step of the review process

From: Medicinal plants as therapeutic options for topical treatment in canine dermatology? A systematic review

Plant name (Latin)

Calendula officinalis

Hypericum perforatum

Matricaria chamomilla

Salvia officinalis

Plant name (English)

Marigold

St. John’s Wort

(German) Chamomile

Sage

All publications imported from WoSa and PMbafter removal of duplicates

536

2239

937

3319

After keyword search in titles and abstracts with EndNote

403

1728

683

1891

Included after manual screening of titles and abstracts

78

120

90

72

Pharmacognostic studies

36

42

21

34

Reviews

16

18

28

5

Publications on adverse effects

1

12

7

2

Finally included publications

25

48

34

31

Resulting referencesc

29

50

34

32

  1. aWeb of Science [28], bPubMed [27], cReference = one or several clinical, in vivo or in vitro trials of one plant species within one finally included publication (= one line in dditional file 3)