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. 2021 Dec 13;2021:7552546. doi: 10.1155/2021/7552546

Table 1.

Search strategies for PubMed and Embase.

PubMed Probiotics
AND
(Psoriasis OR Psoriases OR Pustulosis of Palms and Soles OR Pustulosis Palmaris et Plantaris OR Palmoplantaris Pustulosis OR Pustular Psoriasis of Palms and Soles)
AND
(random∗ controlled trial [pt] OR controlled clinical trial∗ [pt] OR randomized [tiab] OR placebo [tiab] OR drug therapy [sh] OR random∗ [tiab] OR trial∗ [tiab] OR group∗ [tiab])
NOT
(animals [mh] NOT humans [mh])
EMBASE 1. “Probiotics”/exp
2. “psoriasis”/exp
3. “Pustulosis of Palms and Soles”
4. “Pustulosis Palmaris et Plantaris”
5. “Palmoplantaris Pustulosis”
6. “Pustular Psoriasis of Palms and Soles”
7. 2 or 3 or 4 or 5 or 6
8. “randomized controlled trial”
9. “single blind procedure” or “double blind procedure”
10. “crossover procedure”
11. 8 or 9 or 10
12. 1 and 7
13. 11 and 12