From what I've seen they really do need to extra size.

[alex says lightly as he nods in one direction before starting down that hall, keeping a slow and steady pace for cain to easily keep up with and hugging the wall so cain has the option to walk alongside him and keep up their conversation as they walk.

mentally, he counts doors as they pass to see how well his mental image of the hospital's layout is matching up after a month, tracks the path of the orderlies passing by them in a hurry, and adds:] But the layout isn't that different from other hospitals so once you get a feel for one it's not too hard figuring out others.