Initial experience of transumbilical laparoendoscopic single-site surgery of partial adrenalectomy in patient with aldosterone-producing adenoma - Yuge, K; Miyajima, A; Hasegawa, M; Miyazaki, Y; Maeda, T; Takeda, T; Takeda, A; Miyashita, K; Kurihara, I; Shibata, H; Kikuchi, E; Oya, M (BMC Urol, 2010)