EMD Serono, Inc., a subsidiary of Merck KGaA, is continuing the expansion of its U.S. presence with an estimated 20% increase in staff though the end of 2014. The expansion will primarily take place at its site in Billerica, MA, which is being renamed EMD Serono Research & Development Institute. The Billerica site provides early stage drug discovery research through to clinical development and medical.   The company has also made appointments within global functional areas at its Rockland an...