<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"/> June 27, 2004 As Doctors Write Prescriptions, Drug Company Writes a CheckBy GARDINER HARRIS he check for $10,000 arrived in the mail unsolicited. The doctor who received it from the drug maker Schering-Plough said it was made out to him personally in exchange for an attached "consulting" agreement that required nothing other than his commitment to prescribe the company's medicines. Two other physicians said in separate interviews that they, too, received checks unbidden from Schering-Plough, one of the world's biggest drug companies. "I threw mine away," said the first doctor, who spoke on...