Ball, M J <br/><br/>
General ophthalmic services--a practical alternative.  [electronic resource] 

 -  British medical journal  Oct 1978 
 - 1232 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0007-1447 
<br/><br/><label>Standard No.: </label>10.1136/bmj.2.6146.1232-c  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Canada<br/>Costs and Cost Analysis<br/>Eyeglasses--economics<br/>United States