The International Journal of Biostatistics Volume 20 Issue 1 Volume 19 Issue 2 Issue 1 Volume 18 Issue 2 Issue 1 Volume 17 Issue 2 Issue 1 Volume 16 Issue 2 Issue 1 Volume 15 Issue 2 Issue 1 Volume 14 Issue 1 Volume 12 Issue 2 Issue 1 Volume 11 Issue 2 Issue 1 Volume 10 Issue 2 Issue 1 Volume 9 Issue 2 Issue 1