NCIt definition : Nephrotic syndrome within the first three motnhs of life, characterized initially
by increased mesangial matrix, with or without hypertrophy and hyperplasia of podocytes,
and eventual glomerular sclerosis.;
Alternative definition : NICHD: Nephrotic syndrome within the first 3 months of life that is initially characterized
by increased mesangial matrix, with or without hypertrophy, hyperplasia of podocytes,
and, eventually, glomerular sclerosis.;