#	Query	Results
S24	S11 AND S23	61
S23	S12 OR S13 OR S14 OR S15 OR S16 OR S17 OR S18 OR S19 OR S20 OR S21 OR S22	1,301,554
S22	TX allocat* random*	9,763
S21	(MH "Quantitative Studies")	21,772
S20	(MH "Placebos")	11,101
S19	TX placebo*	55,070
S18	TX random* allocat*	9,763
S17	(MH "Random Assignment")	53,035
S16	TX randomi* control* trial*	163,662
S15	TX ( (singl* n1 blind*) or (singl* n1 mask*) ) or TX ( (doubl* n1 blind*) or (doubl* n1 mask*) ) or TX ( (tripl* n1 blind*) or (tripl* n1 mask*) ) or TX ( (trebl* n1 blind*) or (trebl* n1 mask*) )	1,000,920
S14	TX clinic* n1 trial*	238,474
S13	PT Clinical trial	86,722
S12	(MH "Clinical Trials+")	254,738
S11	S6 AND S10	165
S10	S7 OR S8 OR S9	10,573
S9	TX(progestagen* or progestational)	2,226
S8	TX(Progestin* or progestogen* or progesterone or norethisterone or norethindrone or dydrogesterone or medroxyprogesterone)	9,546
S7	(MM "Progestational Hormones+")	2,192
S6	S1 OR S2 OR S3 OR S4 OR S5	1,606
S5	TX heavy N5 menstrua*	460
S4	TX hypermenorrh*	24
S3	TX (dysfunctional N5 uter*)	134
S2	TX menorrhag*	1,284
S1	(MM "Menorrhagia")	691