Berndt, Ernst R. <br/><br/>
Network effects and diffusion in pharmaceutical markets : antiulcer drugs 

 - Cambridge, Mass :  National Bureau of Economic Research,  1999 
 - 31 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ANTIULCER DRUGS--UNITED STATES--MARKETING<br/>ANTIULCER DRUGS--PRICES--UNITED STATES<br/>MARKET SHARE--UNITED STATES<br/>PHARMACEUTICAL INDUSTRY--TECHNOLOGICAL INNOVATIONS--UNITED S
<br/><br/><label>LC Class. No.: </label>HD9665.5  / B476N