On January 1 the pharmaceutical industry started imposing on itself a ban against the branded gifts to doctors that have been a constant companion of pharmaceutical sales representatives.  The Post-It notes, pens and coffee mugs bearing the brand names of various medications are gone.  The paperweights and staplers and occasional plush toys with names of prescription antacids and antidepressants and blood pressure medicines will fade into extinction or become collectors’ items. Last week’s ...