[NEC health care system].
H
H
Ikeda
Y
Y
Ichino
Y
Y
Yoshida
K
K
Tsuchiya
A
A
Okabayashi
T
T
Sakai
A
A
Kotani
D003201:Computers; D004560:Electricity; D006801:Humans; D007564:Japan; D009786:Occupational Health Services / Q000458:organization & administration*