Beyond maternal death: improving the quality of maternal care through national studies of ‘near-miss’ maternal morbidity oleh Marian Knight, Colleen Acosta, Peter Brocklehurst, Anna Cheshire, Kathryn Fitzpatrick, Lisa Hinton, Mervi Jokinen, Bryn Kemp, Jennifer J Kurinczuk, Gwyneth Lewis, Anthea Lindquist, Louise Locock, Manisha Nair, Nishma Patel, Maria Quigley, Damien Ridge, Oliver Rivero-Arias, Susan Sellers, Anjali Shah, on behalf of the UKNeS coapplicant group