kono kikan ha iryou no kenkyuu wo suru.

It is read:

この きかん は いりょう の けんきゅう を する。
Kono kikan wa iryō no kenkyū o suru.

A few reading notes:

• この = kono
• 機関 = kikan
• 医療 = iryō
• 研究 = kenkyū
• を is written wo in romanization, but in modern Japanese it is pronounced o
• する = suru

この means this and directly modifies a noun.

So:

• この機関 = this institution

You cannot say これ機関 because これ stands alone, while この must come before a noun.

Compare:

• これ = this
• この機関 = this institution

So if you want to say this institution, you need この, not これ.

Here, 機関 means something like institution, organization, or agency.

In different contexts, 機関 can also mean things like mechanism or even engine, so learners often get confused. In this sentence, because it is doing research, the meaning is clearly institution/organization.

So この機関 means:

• this institution
• this organization

は marks the topic of the sentence.

So この機関は means:

• As for this institution, ...
• This institution, ...

It sets up what the sentence is about.

A very literal breakdown is:

• この機関は = As for this institution
• 医療の研究をする = does medical research

In natural English, we usually just say This institution does medical research.

Here, の links two nouns together.

• 医療 = medical care / medicine
• 研究 = research

So 医療の研究 means research related to medicine / medical research.

You can think of の here as something like:

• of
• related to
• sometimes just a noun-linker

It does not always translate neatly into one English word. Its job is to connect the nouns naturally in Japanese.

Both are possible.

• 研究をする
• 研究する

This is because 研究 is a verbal noun, often called a suru-noun. It can act like a noun plus する, or like a verb on its own with する attached.

So:

• 医療の研究をする = to do research on medicine / to do medical research
• 医療の研究をする sounds very straightforward and textbook-clear
• 医療の研究をする and 医療の研究をする are not different in meaning here

You will also often see:

• この機関は医療の研究をしている
  for This institution is doing / conducts medical research

Yes, but it is a little different in nuance.

• 医療の研究をする = do research in/about the medical field
• 医療を研究する = study medical care itself

So 医療を研究する treats 医療 more directly as the object being studied.
医療の研究をする sounds more like the general activity of conducting medical research.

In many situations, 医療の研究をする is the more natural phrasing for do medical research.

を marks the direct object of the verb.

Here, the direct object is:

• 医療の研究 = medical research

So:

• 医療の研究をする = do medical research

Even though English says do research, Japanese uses を to mark research as the thing being done.

する is the plain non-past form.

Non-past in Japanese can mean:

• present habitual: does
• future: will do

So this sentence could mean:

• This institution does medical research
• This institution will do medical research

Without more context, the most natural interpretation is usually the habitual present: This institution does medical research.

It is in the plain form, so grammatically it is less formal than a です / ます sentence.

• Plain form: この機関は医療の研究をする。
• Polite form: この機関は医療の研究をします。

That said, the vocabulary itself—especially 機関 and 医療—sounds fairly formal or academic. So even in plain form, the sentence feels somewhat formal in content.

The basic order is:

• この機関は = topic
• 医療の研究を = object
• する = verb

So the structure is:

Topic + object + verb

A very literal English-style breakdown would be:

• As for this institution, medical research does.

That sounds unnatural in English, but it helps show how Japanese puts the verb at the end.

A smoother literal translation is:

• This institution medical research does.

And natural English is:

• This institution does medical research.