<Table> <Tr> <Td> </Td> <Td> This article's tone or style may not reflect the encyclopedic tone used on Wikipedia . See Wikipedia's guide to writing better articles for suggestions . (December 2016) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article's tone or style may not reflect the encyclopedic tone used on Wikipedia . See Wikipedia's guide to writing better articles for suggestions . (December 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> The Kübler - Ross model, otherwise known as the five stages of grief, postulates a series of emotions experienced by terminally ill patients prior to death, or people presented by the loss of a loved one, wherein the five stages are denial, anger, bargaining, depression and acceptance . </P> <P> The model was first introduced by Swiss psychiatrist Elizabeth Kübler - Ross in her 1969 book On Death and Dying, and was inspired by her work with terminally ill patients . Motivated by the lack of instruction in medical schools on the subject of death and dying, Kübler - Ross examined death and those faced with it at the University of Chicago medical school . Kübler - Ross' project evolved into a series of seminars which, along with patient interviews and previous research, became the foundation for her book . Since the publication of On Death and Dying, the Kübler - Ross model has become accepted by the general public; however, its validity is not consistently supported by the majority of research . </P>

What is the first stage of the grief reaction response