Nelson, E B <br/><br/>
Drug substitution and rational therapeutics. Old problems and new challenges.  [electronic resource] 

 -  Postgraduate medicine  Jul 1989 
 - 247-50 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0032-5481 
<br/><br/><label>Standard No.: </label>10.1080/00325481.1989.11704341  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drug Prescriptions<br/>Formularies as Topic<br/>Pharmaceutical Services<br/>Therapeutic Equivalency<br/>United States