Currie, D C <br/><br/>
The unacceptable face of tipping.  [electronic resource] 

 -  British medical journal (Clinical research ed.)  Jun 1987 
 - 1613 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0267-0623 
<br/><br/><label>Standard No.: </label>10.1136/bmj.294.6587.1613  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bronchial Diseases--therapy<br/>Drainage<br/>Humans