_:vb50940863 . _:vb50940863 "A familial nephrotic syndrome characterized by prenatal onset of massive proteinuria followed by steroid resistant renal disease that has_material_basis_in homozygous or compound heterozygous mutation in the NPHS1 gene on chromosome 19q13."^^ . _:vb50940863 . _:vb50940863 "url:https://www.ncbi.nlm.nih.gov/pubmed/10577936"^^ . _:vb50940863 "url:https://www.ncbi.nlm.nih.gov/pubmed/9660941"^^ . _:vb50940863 . _:vb50940863 . _:vb50940863 .