#	Query	Results
S38	S23 AND S37	125
S37	S29 OR S30 OR S31 OR S32 OR S33 OR S34 OR S35 OR S36	1,188,882
S36	TX allocat* random*	10,322
S35	(MH "Quantitative Studies")	22,647
S34	(MH "Placebos")	11,328
S33	TX placebo*	57,156
S32	TX random* allocat*	10,322
S31	(MH "Random Assignment")	55,019
S30	TX randomi* control* trial*	169,987
S29	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*) )	1,018,439
S28	TX ( (trebl* n1 blind*) or (trebl* n1 mask*) )	233
S27	TX ( (trebl* n1 blind*) or (trebl* n1 mask*) )	233
S26	TX clinic* n1 trial*	245,100
S25	PT Clinical trial	86,725
S24	(MH "Clinical Trials+")	261,135
S23	S12 AND S22	541
S22	S13 OR S14 OR S15 OR S16 OR S17 OR S18 OR S19 OR S20 OR S21	9,042
S21	TX intrauterine contraceptive device	425
S20	(MM "Intrauterine Devices") OR "intrauterine devices"	2,863
S19	TX medicated intrauterine device*	7
S18	TX IUD	1,328
S17	TX mirena	117
S16	TX LNG	433
S15	TX Levonorgestrel	1,840
S14	(MM "Levonorgestrel") OR "Levonorgestrel"	1,819
S13	(MH "Progestational Hormones+")	4,799
S12	S1 OR S2 OR S3 OR S4 OR S5 OR S6 OR S7 OR S8 OR S9 OR S10 OR S11	34,939
S11	TX endometrial resection	110
S10	TX hysterectom*	9,908
S9	TX ablation	23,660
S8	TX heavy period*	258
S7	TX excessive menstrua*	54
S6	TX hypermenorr*	24
S5	TX (dysfunctional uterine bleeding)	129
S4	TX abnormal uterine bleeding	555
S3	TX heavy menstrua*	484
S2	TX Menorrhagia	1,319
S1	(MM "Menorrhagia")	711