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In a seminal work, Struwe proved that if $u\\geq 0$ and $\\|\\Delta u+u^{\\frac{n+2}{n-2}}\\|_{H^{-1}}:=\\Gamma(u)\\to 0$ then $dist(u,\\mathcal{T})\\to 0$, where $dist(u,\\mathcal{T})$ denotes the $\\dot{H}^1(\\mathbb{R}^n)$-distance of $u$ from the manifold of sums of Talenti bubbles. Ciraolo, Figalli and Maggi obtained the first quantitative version of Struwe's decomposition with one bubble in all dimensions, namely $\\delta (u) \\leq C \\Gamma (u)$. 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