<prompt> The HLA important in IDDM is -.HLA-A3HLA-B27HLA-DR3DR4HLA-W1  <response>: 95 of IDDM Type I Diabetes Mellitus patients express either HLA DR3 or HLA DR4 or the heterozygous DR3 DR4 configuration. No HLA association is seen with Type II Diabetes mellitus or NIDDM. 