1. Department of Immuno-Oncology, EMD Serono Research and Development Institute, Billerica, MA, USA
2. Discovery and Development Technologies, EMD Serono Research and Development Institute, Billerica, MA, USA
3. Discovery and Development Technologies, Merck Healthcare KGaA, Darmstadt, Germany
4. Discovery and Development Technologies, Merck Healthcare KGaA, Colleretto Giacosa, Italy
5. Department of Immuno-Oncology, Merck Healthcare KGaA, Darmstadt, Germany