Table 1.

MEDLINE Search Strategy

1. whiplash injuries/	18. whiplash.mp.	36. cervicalgia.mp.
2. neck injuries/	19. whiplash associated disorder$.mp.	37. cervicodynia.mp.
3. exp cervical vertebrae/	20. WAD.mp.	38. range of motion.mp.
4. “sprains and strains”/	21. neck injur$.mp.	39. ROM.mp.
5. neck muscles/	22. neck hyperextension.mp.	40. goniomet$.mp.
6. or/1-5	23. neck hyperflexion.mp.	41. return to work.mp.
7. exercise/	24. cervical.mp.	42. re-entry.mp.
8. exercise therapy/	25. neck sprain.mp.	43. reentry.mp.
9. posture/	26. neck strain.mp.	44. leave.mp.
10. or/7-9	27. neck muscle$.mp.	45. absen$.mp.
11. pain/	28. or/18-27	46. illness day.mp.
12. neck pain/	29. exercise$.mp.	47. sick day.mp.
13. “range of motion, articular”/	30. postur$.mp.	48. time loss.mp.
14. sick leave/	31. stabili$.mp.	49. day loss.mp.
15. absenteeism/	32. or/29-31	50. or/33-49
16. or/11-15	33. pain.mp.	51. 28 and 32 and 50
17. 6 and 10 and 16	34. ache.mp.	52. 17 or 51
	35. neckache.mp.	53. limit 52 to (humans and English language)