Table 4.

Cochrane Library Database.

#1	(prognosis):ti,ab,kw OR (overall survival):ti,ab,kw OR (os):ti,ab,kw OR (progression free survival):ti,ab,kw OR (pfs):ti,ab,kw
#2	(ovary tumor):ti,ab,kw OR (ovarian neoplasms):ti,ab,kw OR (ovary cancer):ti,ab,kw OR (ovary cancers):ti,ab,kw OR (ovarian cancer):ti,ab,kw
#3	(ctdna):ti,ab,kw OR (circulating tumor dna):ti,ab,kw OR (cell free tumor dna):ti,ab,kw
#4	#1 AND #2 AND #3