1. Evaluation of various methods for urinary choriogonadotropin in early diagnosis of ectopic pregnancy;Buck, R.H.; Norman, R.J.; Reddi, K.; Moodley, J.; Joubert, S.M.;Clin Chemn,1986
2. A bedside test for human chorionic gonadotropin as sensitive as serum radioimmunoassay;Buck, R.H.; Joubert, S.M.; Norman, R.J.;Clin Chen,1986
3. Bedside application of an ultrasensitive test for hCG in patients with suspected ectopic pregnancy;Buck, R.H.; Pather, N.; Moodley, J.; Joubert, S.M.; Norman, R.J.;Ann Clin Biochem,1987
4. Detection of urinary human chorionic gonadotropin by rapid immunoconcentration method is the first-line test for suspected ectopic pregnancy;Buck, R.H.; Gihwala, N.; Rom, L.; Joubert, S.M.; Norman, R.J.;Fertil Steril,1987
5. Blood or urine measurement of human chorionic gonadotropin for detection of ectopic pregnancy? A comparative study of quantitative and qualitative methods in both fluids;Norman, R.J.; Buck, R.H.; Rom, L.; Joubert, S.M.;Obstet Gynecol,1988