I have 35 years of experience, and specialize in the field of kidney disease with specific knowledge in the areas of lead poisoning, occupational renal diseases and solvent nephropathy. I have published on such topics as occupational renal disease, lead nephropathy and solvent nephropathy. I have testified 10 times on topics such as lead poisoning in children, solvent nephropathy and lead nephropathy. I have done both basic and clinical research in kidney diseases.