scholarly journals PG12 WORK PRODUCTIVITY IN PRIMARY CARE PATIENTS CONSULTING WITH COMPLAINTS OF UPPER GASTROINTESTINAL SYMPTOMS: ESTIMATES FROM THE DANISH RESPONSE STUDY

2009 ◽  
Vol 12 (7) ◽  
pp. A346
Author(s):  
I Malmberg ◽  
V Meineche-Schmidt ◽  
E Christensen ◽  
P Bytzer
1991 ◽  
Vol 23 (4) ◽  
pp. 403-406 ◽  
Author(s):  
Kyösti Ala-Kaila ◽  
Pekka Vaajalahti ◽  
Anna-Liisa Karvonen ◽  
Maarit Kokki

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