Two questions about tables in org-mode.

I have this as row 1 of a table -
|Time on HRT |Breast Cancers Diagnosed During 20 Years Between the Ages
of 50-50 Years |Extra Breast Cancers |
How do I keep all the other rows in that table keep that formatting
when the document is exported please?

And, following on, how do I get visible cell boundaries showing in that
table please? So that each table has a visible border, as does each
cell?

Thanks
Sharon.
-- 
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