19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran19 dead in explosion in a medical center in Tehran