References
- Huch R, Huch A, Tuchschmid P, Zijlstra W, Gand Zwart A. Carboxyhemoglobin concentration in fetal cord blood. Pediatrics 1983; 71: 461–462
- Zwart A, Buursma A, van Kampen E J, Zijlstra W G. Multicomponent analysis of hemoglobin derivatives with a reversed-optics spectrophotometer. Clin Chem 1984; 30: 372–279
- Zijlstra W G, Buursma A, Koek J N, Zwart A. Problems in the spectrophotometric determination of HbO2 and HbCO in fetal blood. Physiology and methodology of blood gases and pH 1984; 4: 45–55, (ISBN 87–88138–06–02)
- Zwart A, van Kampen E J, Zijlstra W G. Multicomponent analysis of hemoglobin derivatives: clinical significance. Physiology and methodology of blood gases and pH 1985; 6: 97–107, (ISBN 87–88138–09–7)
- Zwart A, van Kampen E J, Zijlstra W G. Results of routine determination of clinically significant hemoglobin derivatives by multicomponent analysis. Clin Chem 1986; 32: 972–978