1) Denial
2) Anger
3) Bargaining
4) Depression
5) Acceptance
As I grieve the loss of my mother, I wonder if Ross's model best applies to those of us not grieving our own mortality - but the loss of a loved one. Recently I was looking at another work on the subject by Aurora Winter, whom writes from the perspective of losing her young husband at 33 years of age. Her stages of grief (w/ brief explanations) are:
1) Get support
You have to be willing to ask for support. Getting support is essential for rapid healing.
2) Express your feelings
Unexpressed feelings are like food poisoning. You need to get what is bothering you out of your system.
                    3) Accept what happened
  When you stop fighting and resisting           what is ... when you can accept what           happened as if you had chosen           it, your victim energy evaporates. When you           don't feel like a victim, gratitude is what           remains. 
                    4) Forgive everyone everything, including           yourself
  Resentment is like taking poison and           waiting for other person to die. When you           forgive, you are freed from the past and           empowered to live a joyful life in the           present and create a meaningful, joyful the           future.
                    5) Help others
  The final stage of grief is when you           lend a helping hand to support others.           That's when you know that you have healed.
_________
Though I do not know about Mrs. Winter's research or academics, I think there is some good old-fashined wisdom in her words. Maybe this post will help someone. If so join me ... its time to begin healing.