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| Cell-phone samples (1) |
| Coverage bias (1) |
| Dual-frame samples (1) |
| Electronic white pages (1) |
| Listed telephone samples (1) |
| Random Digit Dialing (1) |
| Telephone sampling (1) |
| Cell-phone samples (1) |
| Coverage bias (1) |
| Dual-frame samples (1) |
| Electronic white pages (1) |
| Listed telephone samples (1) |
| Random Digit Dialing (1) |
| Telephone sampling (1) |