Essential public health functions--their place in the health-for-all policy for the 21st century.
Leowski
J
J
School of Public Health and Social Medicine, Medical Centre for Postgraduate Education, Warsaw, Poland.
D005544:Forecasting; D014943:Global Health; D006291:Health Policy / Q000639:trends*; D006292:Health Priorities; D006801:Humans; D011634:Public Health / Q000639:trends*