Oooh, there's tons out there! How broad/specific do you want to get? Given your other message, it seems like you want this information quickly, and unfortunately I'm swamped at the moment with projects and performance appraisals...but I can definitely point you in the right direction!
🙂
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AuntMinnie. It's free, and this is an excellent resource for industry news, updates, etc. And they post tons of abstracts from studies that show the valuable impact of nuclear medicine (from how it positively affects course of therapy, economic value, and most importantly patient outcomes). I saw one just the other day on how imaging has helped to extend US life expectancy numbers...
Be sure to also scan through journals like
JNM's free archives online.