Improving subquery efficiency

Before you run the whole thing, can you run the following query:

;with pc_c as (
select cytology_id , refer_doctor  
from  lis.pathcase pc inner join lis.cytology c On pc.cytology_id = c.id  
                        WHERE pc.sign_out = 1
            and pc.report_processed >= '2014-01-01'
            and pc.report_processed <= '2015-01-01')

 ,docbet as ( Select bet.id as betid,  doc.first_name, doc.surname, doc.id as docid, bet.name   
                        from lis.bethesta bet, doctor as doc) 

Select * from docbet Left JOIN pc_c On  pc_c.refer_doctor = docbet.docid and    pc_c.besthesda_id = docbet.betid