Sentence examples for studies were extracted from inspiring English sources

Data from the studies were extracted using data extraction form.

Data from selected studies were extracted using a data extraction form.

Eligible studies were extracted to pre-defined data extraction grids.

The characteristics of the included studies were extracted to a piloted data extraction form.

Relevant data from all included studies were extracted using a pre-defined extraction grid.

Details of the eligible studies were extracted and summarised using a standardised data extraction sheet.

All data from included studies were extracted by two reviewers using a standardised data extraction form.

Data from the included studies were extracted by both reviewers in consensus, using a standardised extraction form.

Data from seven studies were extracted.

Data from 27 studies were extracted and assessed for quality using standardized tools.

Fifteen studies were extracted for reducing dysmenorrhea (menstrual distress), labor pain, low back pain, chronic headache, and other traumatic pain.