Ryoji Sakai

Effects of urbanization, economic development, and migration of workers on suicide mortality in Japan

Akiko Otsu, Shunichi Araki, Ryoji Sakai et al. · Social Science & Medicine · 2003 · 90 citations

Human Migration, Economic Development, Global Health +4

Dose-Response Relationship between Tobacco Consumption and Melanin Pigmentation in the Attached Gingiva

Shunichi Araki, Katsuyuki Murata, Koichi USHIO et al. · Archives of Environmental Health An International Journal · 1983 · 64 citations

Occupational Toxicology, Tobacco Control, Melanin Pigmentation +13

Low Income, Unemployment, and Suicide Mortality Rates for Middle-Age Persons in Japan

Akiko Yamasaki, Ryoji Sakai, Taro Shirakawa · Psychological Reports · 2005 · 59 citations

Suicide Mortality Rates, Psychiatry, Longevity +14

Suicide Mortality of Young, Middle-aged and Elderly Males and Females in Japan for the Years 1953-96: Time Series Analysis for the Effects of Unemployment, Female Labour Force, Young and Aged Population, Primary Industry and Population Density

Akiko Yamasaki, Shunichi Araki, Ryoji Sakai et al. · Industrial Health · 2008 · 44 citations · Full text

Engineering, Aging, Mortality Rates +17

An Ex Post Cost-Benefit Analysis of the Nitrogen Dioxide Air Pollution Control Program in Tokyo

Abby S. Van Voorhees, Shunichi Araki, Ryoji Sakai et al. · Journal of the Air & Waste Management Association · 2000 · 35 citations · Full text

Engineering, Pollution Prevention, Environmental Impact Assessment +20