Hmmm... I think you must concentrate well while looking at the walkthrough, but if they said that, then they're absolutely wrong, you must go to a place where it will be marked into the map after you get outside, because after you finish killing the boss and taking the piece of a pyramid thing then you are finished from this hospital, time to meet Dhalia from other place, while after meeting Lisa, go outside the hostital and draw the map, I can't really remember which place but it is marked in your map, you must go there but be ware of the smugs, just ran out from them and don't kill them, as long as you know how to kill them without taking damage then do it, so it will help you to search the area, taking extra weapons and healths along the streets...
