Sheridan, Nicolette FKenealy, Timothy WConnolly, Martin JMahony, FaithBarber, P AlanBoyd, Mary AnneCarswell, PeterClinton, JanetDevlin, GerardDoughty, RobertDyall, LornaKerse, NgaireKolbe, JohnLawrenson, RossMoffitt, AllanHealth EquityGlobal HealthstudiesHealth equity in the New Zealand health care system: a national surveyArticle