Beware! It's a Cyber World - - Summary:
Forwarded email message that features a poem called "Slow Dance" claims that the  poem was written by a young girl suffering from cancer and that the American  Cancer Society will donate money to help the poor girl every time the  message is forwarded.
In fact, the claims in the message are false. It's another form of 'Charity Scams'. The American Cancer Society will  certainly not donate money based on how many times an email is  forwarded. Sending on the email will help nobody.  The email is just one  in a long line of absurd hoaxes that claim that money will be donated  in exchange for forwarding an email. Any message that makes such a claim  is sure to be a hoax and should not be sent on.  
Let's have a look to the contents of the mail and the impressive wording of the poem:
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Subject: FW: Slow Dance - A Last Request.
I don't normally send these on....but this one brought a lump to my  throat..... 
_______________________________
This is a poem written by a teenager with cancer. 
She wants to see how many people get her poem.   It is quite the poem. Please pass it on. This poem was written by a terminally ill young girl in a New York Hospital.   It was sent by a medical doctor.
Make sure to read what is in the closing statement AFTER THE POEM.
SLOW DANCE
Have you ever watched kids 
On a merry-go-round? 
Or listened to the rain 
Slapping on the ground? 
Ever followed a butterfly's erratic flight? 
Or gazed at the sun into the fading night?
You better slow down.
Don't dance so fast.
Time is short.
The music won't last. 
Do you run through each day
On the fly? 
When you ask How are you?
Do you hear the reply? 
When the day is done 
Do you lie in your bed
With the next hundred chores 
Running through your head? 
You'd better slow down
Don't dance so fast.
Time is short.
The music won't last.
Ever told your child,
We'll do it tomorrow?
And in your haste,
Not see his sorrow?
Ever lost touch,
Let a good friendship die 
Cause you never had time
To call and say,"Hi"
You'd better slow down.
Don't dance so fast.
Time is short.
The music won't last.
When you run so fast to get somewhere 
You miss half the fun of getting there.
When you worry and hurry through your day,
It is like an unopened gift..... 
Thrown away.
Life is not a race.
Do take it slower 
Hear the music 
Before the song is over. 
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FORWARDED E-MAILS ARE TRACKED TO OBTAIN THE TOTAL COUNT.
Dear All: 
PLEASE pass this mail on to everyone you know - even to those you don't  know! It is the request of a special girl who will soon leave this world  due to cancer.
This young girl has 6 months left to live, and as her dying wish, she  wanted to send a letter telling everyone to live their life to the  fullest, since she never will. 
She'll never make it to prom, graduate from high school, or get married and have a family of her own
By you sending this to as many people as possible, you can give her and  her family a little hope, because with every name that this is sent to,  The American Cancer Society will donate 3 cents per name to her  treatment and recovery plan. One guy sent this to 500 people! So I know  that we can at least send it to 5 or 6. It's not even your money, just  your time!
PLEASE PASS ON AS A LAST REQUEST 
Dr. Dennis Shields, Professor 
Department of Developmental and Molecular Biology
Albert Einstein College of Medicine of Yeshiva University
1300 Morris Park Avenue
Bronx, New York 10461
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Beware! It's a Cyber World - - Explanation:  
This hoax email has been circulating almost continually since at least  2005. The message claims that, for every time that the email is  forwarded to another person,  the American Cancer Society will donate 3  cents to help pay for a "treatment and recovery plan" to help a  terminally ill child. According to the message, recipients can therefore  help this child simply by sending on the message to as many people as  possible.
However, the claims in the message are untrue. The American Cancer  Society certainly will not donate money every time the message is  forwarded. In fact, the message is just one more in a 
long line of foolish hoaxes  that claim that an email is being tracked in some way and that money  will be donated every time a message is forwarded.  Such claims are  simply absurd.  No legitimate company or organization would agree to  donate money based on how many times a particular email is forwarded.  Furthermore, there is no reliable, or ethical, method of tracking the  journey of one particular email that may ultimately be forwarded  thousands of times. Any message that attempts to convince recipients that a charitable  campaign relies on the random forwarding of an email is sure to be a  hoax.
"Slow Dance", the poem tacked onto the top of the email, was not written  by "a terminally ill young girl in a New York Hospital" or a "teenager  with cancer".  In fact, the piece was penned by 
David L. Weatherford, poet and child psychologist.  "Slow Dance" 
can be viewed on the poet's website.
The American Cancer Society has denied any involvement and has 
the following disclaimer on its website:
 The email is thought to be a revised version of an email that has been  around in some form or another since at least 1997. The American Cancer  Society is in no way involved in this effort, and never lends its name  to chain emails. We certainly do understand the good intentions of those  who respond to the email, and hope people who do want to help will find  legitimate ways to assist the millions of cancer patients who rely on  reputable organizations to improve the daily lives of cancer survivors,  and reduce the suffering caused by cancer.
   Furthermore, the email was not sent by Dr. Dennis Sheilds as claimed.  Although Dr. Dennis Sheilds is a real person, and a faculty member at  the Albert Einstein College Of Medicine, it appears that his name was  added to the message without his permission.  A page on the AECOM website states that: Dr. Dennis Sheilds is a faculty member at AECOM and he  does have an e-mail address. However, information received from earlier complaints show that his name  was signed to the message but it was not sent from his e-mail address. This suggests that this message is a forgery.
 The hoax appears to have evolved out of an earlier hoax that named the dying child as Jessica Mydek (See example below).  According to the ACS,  "the story of Jessica Mydek has never been substantiated. The American  Cancer Society does not endorse fundraising efforts using chain letters  of any kind." This email and others like it should be deleted rather than forwarded.  Forwarding such messages does nothing whatsoever to help sick children.  In fact, such hoaxes cause unnecessary problems  for organizations such  as the American Cancer Society who must waste precious time and  resources responding to queries about such supposed charity campaigns.  If you receive this hoax message or another like it, please do not make  the problem worse by sending it on to others.  And please take a moment  to let the sender know that the message is a hoax.