We are still collecting memories of SIOP over the years. Join the #SIOPat50 Photo Contest for a chance to win a FREE Registration to #SIOP2018.

1. Share a picture from a past SIOP experience and the story behind it on either Facebook or Twitter

2. Post/Tweet your photo using the #SIOPat50 and #SIOP2018 hashtags

3. Photos can include individuals or groups

4. You can post as many photos as you like. Only one photo will be selected.


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Let’s build the SIOP 50th anniversary photo album together!

Join the contest by Thursday, September 6, 12:00 CEST. 

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