Here are a few videos for those who are interested in medical mission. The GMHC Conference is a huge medical missions conference that is in Louisville, KY every year. I have attended numerous times, and it has always been a time of encouragement. If you are interested in medical missions, I recommend you attend.
cairesonmission 
I’ve heard great things about it.
The churches of Christ have a much smaller annual one that I can also recommend: http://www.ihcf.net/seminar.php
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