Comment on

• Increasing incidence of childhood primary malignant brain tumors--enigma or no-brainer?

  Black WC. Black WC. J Natl Cancer Inst. 1998 Sep 2;90(17):1249-51. doi: 10.1093/jnci/90.17.1249. J Natl Cancer Inst. 1998. PMID: 9731726 No abstract available.
• Trends in reported incidence of primary malignant brain tumors in children in the United States.

  Smith MA, Freidlin B, Ries LA, Simon R. Smith MA, et al. J Natl Cancer Inst. 1998 Sep 2;90(17):1269-77. doi: 10.1093/jnci/90.17.1269. J Natl Cancer Inst. 1998. PMID: 9731733