Affiliation: | 1. C.S.I.R.O. Division of Animal Health, Animal Health Research Laboratory, Private Bag 1, P.O., Parkville, Victoria., 3052 Australia;2. Chemistry Division, DSIR, Private Bag, Petone, New Zealand;3. National NMR Centre, Australian National University, Canberra, A.C.T., 2600 Australia;4. Applied Biochemistry Division, DSIR, Private Bag, Palmerston North, New Zealand |