[1] UNIV OXFORD, OXFORD CTR MOLEC SCI, S PARKS RD, OXFORD OX1 3QT, ENGLAND
[2] UNIV OXFORD, OXFORD CTR MOLEC SCI, OXFORD OX1 3QU, ENGLAND
[3] UNIV OXFORD, NEW CHEM LAB, OXFORD OX1 3QT, ENGLAND
[4] UNIV OXFORD, MOLEC BIOPHYS LAB, OXFORD OX1 3QU, ENGLAND