I'm interested in understanding better the properties of the integrable (almost) complex structure that Eliashberg constructs on the cotangent bundle of a closed manifold $M$, whose dimension is at least $3$ (See [these notes][1], thm 11.10).

Let $\omega_{\text{can}}$ the canonical symplectic structure on the cotangent bundle, and let $J_{\text{can}}$ a tamed a.c.s.

The statement says that given $(T^*M, \omega_{\text{can}}, J_{\text{can}}) $ we can find an exhausting Morse function $\phi$ with some properties, such that $(T^*M, \omega_{\phi}, \tilde{J})$ is a Stein manifold. Moreover $\tilde{J}$ is homotopic to $J_{\text{can}}$ and $\tilde{J}$ is tamed by $\omega_{\phi}$.

The notation $\omega_{\phi}$ suggests that the new symplectic structure is build from the map $\phi$.

>I'd like to know if we can assume that $\tilde{J}$ is tamed by $\omega_{\text{can}}$, or what kind of relation we can force them to have.

In [this answer][2], T. Perutz concludes by saying that it seems to be the case that $\omega_{\phi}$ and $\omega_{\text{can}}$ are symplectomorphic. Call that symplectomorphism $\psi$, this would implies that $\psi_*\tilde{J}$ is tamed by $\omega_{\text{can}}$. Where can I find a reference for this result (the existence of such symplectomorphism)?


  [1]: http://math.stanford.edu/~eliash/Public/269A/Stein-notes.pdf
  [2]: https://mathoverflow.net/a/26781/48216