Range in systolic blood pressure and care-needs certification in long-term care insurance in community-dwelling older patients with chronic kidney disease oleh Taroh Himeno, Tazuo Okuno, Keisuke Watanabe, Kumie Nakajima, Osamu Iritani, Hiroshi Yano, Takuro Morita, Yuta Igarashi, Masashi Okuro, Shigeto Morimoto