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- [21] COMMENT: ON RESPONDENT-DRIVEN SAMPLING AND SNOWBALL SAMPLING IN HARD-TO-REACH POPULATIONS AND SNOWBALL SAMPLING NOT IN HARD-TO-REACH POPULATIONS [J]. SOCIOLOGICAL METHODOLOGY 2011, VOL 41, 2011, 41 : 347 - 353
- [28] Percutaneous spine biopsy: reaching those hard-to-reach places [J]. SKELETAL RADIOLOGY, 2023, 52 (10) : 1803 - 1814