here is some info:

http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_xray

So a regular chest x-ray delivers a radiation dose equivalent to about 10-days of background radation from natural sources, which is probably too small to cause any concern. 

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• I appreciate your answer, I feel better. Thank you.回复：here is so -freecall- ♂ (0 bytes) () 11/01/2011 postreply 09:12:27