Schering-Plough Corp. reported financial results for the 2003 fourth quarter and full year, including lower 2003 sales and a loss for the year stemming primarily from the decline in sales and recognition of special charges. Fourth quarter 2003 sales of $1.9 billion were 18% lower than the 2002 period.The company previously indicated in 2003 that fourth quarter comparisons would be affected by unusual dynamics of its hepatitis C business in that quarter as well as the absence of Losec revenues fr...