Full show notes for this episode can be found here: https://stpetersburggroup.com/podcast-episodes/dr-jonathan-ellen-johns-hopkins-all-childrens/ Hosted by Joe Hamilton and Ashley Ryneska. On this episode of SPx, Joe and Ashley are joined in the studio by Dr. Jonathan Ellen of John's Hopkins All Children's Hospital. Dr. Ellen spent much of his extensive career as a social epidemiologist studying HIV/AIDS.