SQL & PL/SQL

Hello,

I'm new to Oracle. I'm working in SQL Developer.

I'm trying to do a simple select on the results of a stored procedure call. I'm not sure how to do it. Here's what I've got so far:

declare
type ref_cursor is ref cursor;
results ref_cursor;
begin
MyStoredProcedure(123, results);
select * from results;
end;
/

but it tells me:

Error starting at line 1 in command:
declare
type ref_cursor is ref cursor;
results ref_cursor;
begin
GET_TAX_TYPE_BY_TAX_ENTITY_KEY(60670100000000, results);
select * from results;
end;
Error report:
ORA-06550: line 6, column 15:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 6, column 1:
PL/SQL: SQL Statement ignored
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action:

Obviously, select * from results; is not the right way to do it. But what is?

Thanks for any forthcoming advice.