Positive renal familial history in IgA nephropathy is associated with worse renal outcomes: a single-center longitudinal study oleh Yoshinori Sato, Hiroyasu Tsukaguchi, Koichiro Higasa, Naoto Kawata, Kiyoko Inui, Tran Nguyen Truc Linh, Tran Thuy Huong Quynh, Inoue Yoshihiko, Fumihiko Koiwa, Ashio Yoshimura