Citation: R. Miller et J. Bradbury, Academic performance of English first and second language students: selection criteria, S AFR J SCI, 95(1), 1999, pp. 30-34
Citation: O. Stewart et al., Simultaneous administration of hepatitis B and polio vaccines associated with bilateral optic neuritis, BR J OPHTH, 83(10), 1999, pp. 1200-1201