Can't for the life of me find out how to cite a specific chapter out of an online handbook in NLM. Is this correct?
Higgins JPT, Savović J, Page MJ, Elbers RG, Sterne JAC. Chapter 8: Assessing risk of bias in a randomized trial. In: Higgins JPT, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, Welch VA (editors). Cochrane Handbook for Systematic Reviews of Interventions version 6.3 (updated February 2022). Cochrane, 2022.

have not used NLM myself, but this site seems legit
https://middlebury.libguides.com/citation/nlm

scheme:
Chapter Author’s Surname First-and-Middle-Initials. Chapter Title. In: Book Editor’s Surname First-and-Middle-Initials. Book title. Place of Publication: Publisher; Date of Publication. Pagination.
example:
Osakada F, Takahashi M. Stem cells in the developing and adult nervous system. In: Steinhoff G, editor. Regenerative medicine: From protocol to patient. Dordrecht, Netherlands: Springer; 2013. p. 129-152.

so your formatting seems to be slightly off, but i dont know if there is some flexibility in this style

Thanks!