1. Diagnostic Tests for Infants and Children,;Behrendt, H.,1949
2. Giaume, C., and Lanza, P. (1929). Pediatria, 37, 519.
3. 'Chemical Methods in Clinical;Harrison, G.A.,1947
4. Ladd, W. E. (1935). Ann. Surg., 102, 742.
5. Ross, S. G., Waugh, T. R., and Malloy, H. T. (1937). J. Pedaat., 11, 397.