There was a statement made regarding doctors not healing flanking units (swordsmen), only frontline units (Hoplites and Spears (quite some time back @2010-11). Since there is no way (that I know currently) to check if hit points were restored like cooks affecting morale. (1) Is it true they do not heal flankers? (2) is the cost in gold worthwhile, to have a large number (relatively speaking)? Would it be better to simply build and send more hoplites?