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Identifying unlabelled chips in BQ500410A reference application diagram

Other Parts Discussed in Thread: BQ500410A, CSD17308Q3

I've been looking at the diagram on page 23 for the BQ500410A's datasheet here and can't figure out what chip IDs correspond to U19 and as well for the diodes in Q13. Other chips on the board have their IDs on the diagram and I'm hoping someone has some insight as to what these are.

Thank you.