Urinary megalin deficiency implicates abnormal tubular endocytic function in Fanconi syndrome. by Norden, A, Lapsley, M, Igarashi, T, Kelleher, C, Lee, P, Matsuyama, T, Scheinman, S, Shiraga, H, Sundin, D, Thakker, R, Unwin, R, Verroust, P, Moestrup, S