Johansen, Tommy N.; Hawes, Calvin R.; Ellis, Gareth J.; Ebert, Bjarke; Stensbol, Tine B.; Da Graca Thrige, Dorthe; Krogsgaard-Larsen, Povl Journal of Labelled Compounds and Radiopharmaceuticals, 1999, vol. 42, # 10 p. 937 - 947 doi: 10.1002/(SICI)1099-1344(199910)42:10<937::AID-JLCR252>3.0.CO;2-#