st: Sampling question

[Wendy Alfaro <wendyalfaro07@gmail.com>]

Dear Stata members:

I would like to know what is the best approach to sample from a list
of companies. I already have them categorized by sectors. I need a
specific number of companies from each sector. For example, 30
companies from the medical sector.
Thank you in advance for your help and consideration.

Wendy
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