1. Characterisation and Comparability Laboratory, The National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Dublin A94 X099, Ireland
2. Patheon Viral Vector Services, 13859 Progress Blvd, Alachua, Florida 32615, United States
3. School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin D04 V1W8.F, Ireland