Figure 3 - Detection of DNA fragments obtained by ethidium bromide staining after SmaI digestion and electrophoresis in patient 2, family of patient 1, a patient with known GH-1 gene deletion and a normal control (C). Lanes 1 and 5: Patients 2 and 1; lanes 2-4: father and normal sisters of patient 1, respectively; lane 6: known Chinese GH-1 deletion homozygote; lane 7: normal control.