TY - GEN AU - Bate,S.P. AU - Robert,G. TI - Knowledge management and communities of practice in the private sector: : lessons for modernizing the National Health Service in England and Wales KW - Control de calidad KW - Política sanitaria KW - Salud pública KW - Relación sector público privado KW - Gran Bretaña KW - Inglaterra KW - Gales ER -