Table 3 Case‐only analysis: tumour side and mobile phone use.
| Tumour side | Regular side of mobile phone use | Total | |||
|---|---|---|---|---|---|
| Right | Left | Both | Don't know | ||
| Right | 5 | 12 | 4 | 1 | 22 |
| Left | 18 | 8 | 1 | 0 | 27 |
| Both | 0 | 0 | 2 | 0 | 2 |
| Total | 23 | 20 | 7 | 1 | 51 |
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