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Inclusion and exclusion criteria for this systematic review.
| Inclusion Criteria | Exclusion Criteria |
|---|---|
| Articles published in peer-reviewed venues | Papers not written in English. |
| Articles published since 2012 | Articles not included wearable sensors. |
| Articles must address a certain combination of words, i.e., (sensor/wearable) + (maternal/pregnant women) + (fetal movement/ECG/HR) + (monitoring/physical activities) |
