S18	S5 and S17
S17	S6 or S7 or S8 or S9 or S10 or S11 or S12 or S13 or S14 or S15 or S16
S16	TX allocat* random*
S15	(MH "Quantitative Studies")
S14	(MH "Placebos")
S13	TX placebo*
S12	TX random* allocat*
S11	(MH "Random Assignment")
S10	TX randomi* control* trial*
S9	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*) )
S8	TX clinic* n1 trial*
S7	PT Clinical trial
S6	(MH "Clinical Trials+")
S5	S1 or S2 or S3 or S4
S4	"Dupuytren"
S3	(MH "Fascia")
S2	"Fibromatosis"
S1	(MM "Dupuytren's Contracture")