Table 1.
Embase via Ovid Search (Last Performed October 2021)
| Search | Keywords | Records |
|---|---|---|
| S1 | Exp ultrasound/ | 200,456 |
| S2 | Ultraso*.mp. | 678,821 |
| S3 | S1 or S2 | 678,821 |
| S4 | Sonogr*.mp. | 84,038 |
| S5 | S3 or S4 | 716,489 |
| S6 | Rural.mp. | 212,517 |
| S7 | Resource.mp. | 247,299 |
| S8 | S6 or S7 | 451,759 |
| S9 | S5 and S8 | 4505 |
| S10 | Access*.mp. | 798,212 |
| S11 | Avail*.mp. | 1,792,438 |
| S12 | S10 or S11 | 2,476,007 |
| S13 | S9 and S12 | 1275 |
| S14 | Portablemp. | 43,939 |
| S15 | Handheld.mp. | 9518 |
| S16 | Pocket.mp. | 60,874 |
| S17 | Mobile.mp. | 159,607 |
| S18 | Point-of-care.mp. or “point of care ultrasound”/ | 39,146 |
| S19 | S14 or S15 or S16 or S17 or S18 | 304,283 |
| S20 | S13 and S19 | 270 |
| S21 | Limit S20 to (human and English language and yr=“2010 -Current”) | 247 |
Note: *Truncation symbol for this search and will search all words with the preceding letters .mp. indicates a multi-purpose search across all fields.