# Positive scalar curvature on the double of a manifold (assuming mean convexity of the boundary)

This question is related to a previous one.

Let $$(M^n,g)$$ be a compact Riemannian manifold with boundary. Assume it has positive scalar curvature and $$\partial M$$ is mean convex (positive mean curvature).

Question: Is it true that $$DM$$, the double of $$M$$, admits a metric of positive scalar curvature?