Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học quốc tế đề tài : From staff-mix to skill-mix and beyond: towards a systemic approach to health workforce management | Human Resources for Health BioMed Central Review From staff-mix to skill-mix and beyond towards a systemic approach to health workforce management Carl-Ardy Dubois 1 and Debbie Singh2 Open Access Address University of Montreal Faculty of Nursing Sciences CP 6128 - succursale Centre-ville Montreal Quebec H3C 3J7 Canada and 2Health Services Management Centre University of Birmingham Edgbaston Birmingham B15 2RT UK Email Carl-Ardy Dubois - Debbie Singh - Corresponding author Published 19 December 2009 Received 2 September 2008 _Dr. . 1AAO UTO 7701107 Accepted 19 December 2009 Human Resources for Health 2009 7 87 doi l478-449l-7-87 p This article is available from http content 7 l 87 2009 Dubois and Singh licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract_ Throughout the world countries are experiencing shortages of health care workers. Policy-makers and system managers have developed a range of methods and initiatives to optimise the available workforce and achieve the right number and mix of personnel needed to provide high-quality care. Our literature review found that such initiatives often focus more on staff types than on staff members skills and the effective use of those skills. Our review describes evidence about the benefits and pitfalls of current approaches to human resources optimisation in health care. We conclude that in order to use human resources most effectively health care organisations must consider a more systemic approach - one that accounts for factors beyond narrowly defined human resources .