#	Query	Results
S48	S35 AND S47	30
S47	S36 OR S37 OR S38 OR S39 OR S40 OR S41 OR S42 OR S43 OR S44 OR S45 OR S46	1,097,934
S46	TX allocat* random*	5,898
S45	(MH "Quantitative Studies")	15,110
S44	(MH "Placebos")	9,934
S43	TX placebo*	42,609
S42	TX random* allocat*	5,898
S41	(MH "Random Assignment")	42,016
S40	TX randomi* control* trial*	115,809
S39	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*) )	866,076
S38	TX clinic* n1 trial*	196,374
S37	PT Clinical trial	79,958
S36	(MH "Clinical Trials+")	207,314
S35	S12 AND S34	107
S34	S13 OR S14 OR S15 OR S16 OR S17 OR S18 OR S19 OR S20 OR S21 OR S22 OR S23 OR S24 OR S25 OR S26 OR S27 OR S28 OR S29 OR S30 OR S31 OR S32 OR S33	20,839
S33	TX(stimulat* N3 cycle*)	229
S32	TX spontaneous* ovulat*	23
S31	TX pituitary suppression	79
S30	TX(cycle* N2 regimen*)	91
S29	TX(artificial* N2 cycle*)	8
S28	TX(natural* N2 cycle*)	120
S27	TX Progesterone	4,593
S26	(MM "Progesterone")	1,105
S25	TX estrogen* or TX oestrogen*	14,913
S24	(MM "Estrogens")	2,993
S23	TX GnRH*	499
S22	TX Gonadotrop?in‐Releasing Hormone*	90
S21	(MM "Gonadorelin") OR (MM "Pituitary Hormone Release Inhibiting Hormones")	479
S20	TX(Follicle Stimulating Hormone or FSH)	1,763
S19	(MM "Follicle‐Stimulating Hormone")	262
S18	TX(Menotropin* or menopausal gonadotrop* or HMG)	722
S17	TX Clomiphene or TX clomid	360
S16	(MM "Clomiphene")	121
S15	TX(endometri* N2 prepar*)	18
S14	TX((ovar* N5 stimula*) or (ovulat* N5 induct*))	877
S13	(MM "Ovulation Induction")	260
S12	S1 OR S2 OR S3 OR S4 OR S5 OR S6 OR S7 OR S8 OR S9 OR S10 OR S11	1,100
S11	TX FET	101
S10	TX(frozen N5 blastocyst*)	5
S9	TX(freez* N5 blastocyst*)	0
S8	TX(freez* N5 embryo*)	51
S7	TX(frozen N5 embryo*)	129
S6	TX(vitrification N7 blastocyst*)	8
S5	TX(vitrification N7 embryo*)	18
S4	(MM "Freezing")	136
S3	TX(Cryopreserv* N7 blastocyst*)	12
S2	TX(Cryopreserv* N7 embryo*)	170
S1	(MM "Cryopreservation+")	668