I mean, look, it doesn't take a double blind, placebo controlled study to figure out what makes a marriage not work.

Blind. He's blind.

I'm blind. You're blind.

Blind in Gaza, blind in Jerusalem.

The blind are leading the blind.

It's a blind. That letter's no blind.

However, IQWiG's terms of reference explicitly disregard any issues which cannot be tested in double blind studies, for example a comparison of radically different treatment regimes.

A, double R, E, double T.

Blind

blind?

Blind?

Blind?

Leave them alone. They are blind guides of the blind. If the blind guide the blind, both will fall into a pit.

Let them alone they be blind leaders of the blind. And if the blind lead the blind, both shall fall into the ditch.

Double

Double

Blind River

Blind date!

legally blind.

Blind dating!

Blind date?

I'm blind!

You're blind.

She's blind.

Who's blind?

You blind?

blind? Harry!

I'm blind!

He's blind.

You're blind.

You're blind.

They're blind to the hypothesis. They're blind to the conditions.

Nothing I know of. For the blind, for the blind.

There's a blind spot through the middle. A blind spot?

On the double, man. On the double! Yes, sir.

Double illuminate

Double Quotes

Double buffer

Double Line

Double Sweep

Double Fan

Double flat

Double sharp

Double whole

Double Postcard