The review found no eligible studies for this question.
The review found no eligible studies for this question.
The review found no eligible studies for this question.
It is very uncertain whether analysis 7 ‐ Collagen membrane with polyethylene glycol and glycerol changes clinical pregnancy rate compared with ringer's lactate (very low certainty).
The review found no eligible studies for this question.
Gel agents showed no clear difference in clinical pregnancy rate compared with no gel agents (or placebo) (low certainty).
The review found no eligible studies for this question.
Steroids (any route) showed no clear difference in clinical pregnancy rate compared with no steroids (or placebo) (low certainty).
Hydroflotation agents showed no clear difference in clinical pregnancy rate compared with no hydroflotation agents (or placebo) (moderate certainty).