#	Query	Results
S29	S20 and S28	159
S28	S27 or S26 or S25 or S24 or S23 or S22 or S21	340,934
S27	TX placebo*	25,485
S26	TX ((allocat* or allot* or assign* or divid*) and (condition* or experiment* or intervention* or treatment* or therap* or control* or group*))	148,317
S25	TX "randomi?ed control* trial*"	32,860
S24	TX (cross?over or (cross over))	94,099
S23	TX ((singl* or doubl* or trebl* or tripl*) and (blind* or mask*))	43,994
S22	TX (random* and (allocat* or allot* or assign* or basis* or divid* or order*))	100,187
S21	TX ((clinic$ or controlled or comparative or placebo or prospective or randomised or randomized) and (trial or study))	218,322
S20	S14 and S19	414
S19	S15 or S16 or S17 or S18	46,454
S18	TI ( (ergonom* or biomechanic*) ) or AB ( (ergonom* or biomechanic*) )	17,343
S17	DE "POSTURE" OR DE "SITTING position" OR DE "STANDING position"	10,214
S16	DE "BIOMECHANICS"	29,723
S15	DE "HUMAN engineering" OR DE "SITUATIONAL awareness"	292
S14	S9 and S13	2,520
S13	S10 or S11 or S12	161,823
S12	TI "carpal tunnel syndrome*" or AB "carpal tunnel syndrome*"	595
S11	DE "NECK pain" or DE "SHOULDER pain" or DE "WOUNDS & injuries"	45,985
S10	TI ( ( (neck* or shoulder* or arm* or upper limb* or upper extremit* or elbow* or forearm* or wrist* or hand* or finger*) ) ) or AB ( ( (neck* or shoulder* or arm* or upper limb* or upper extremit* or elbow* or forearm* or wrist* or hand* or finger*) ) )	123,435
S9	S1 or S2 or S3 or S4 or S5 or S6 or S7 or S8	7,767
S8	TI ( (vibration and (induced or related or syndrome*)) ) or AB ( (vibration and (induced or related or syndrome*)) )	458
S7	TI ( (repetit* and (strain or stress or industr* or motion or movement or trauma)) ) or AB ( (repetit* and (strain or stress or industr* or motion or movement or trauma)) )	2,707
S6	TI "work related" or AB "work related"	1,676
S5	TI "cumulative trauma*" or AB "cumulative trauma*"	67
S4	TI ( ("occupational overuse" or "tension neck") and syndrome* ) or AB ( ("occupational overuse" or "tension neck") and syndrome* ) "	2
S3	DE "OCCUPATIONAL health services"	900
S2	DE "OCCUPATIONAL diseases"	625
S1	DE "OVERUSE injuries"	1,824