More from the article ...

... As she stood with the children watching window washers dressed as Spider-Man, Iron Man, the Hulk and Thor swing back and forth across the side of the building, Nielson said sights like this make a big difference for the kids being treated at the hospital.

"We're fortunate enough that we just come back for regular appointments," she said, noting Ethan initially spent three months in the facility.

"But there's kids who spend years of their lives here, and so things like this just make the mundane and the everyday enjoyable." ...

From the article ...

... and, if I may be so bold to add...

Major kudos to those workers who donned the costumes to give the children something to smile about.