"Thought that" --> Signals probability. So, the verb that follows should be "would".

can you explain how does it signals probability

what is prevented from is not clear in the original sentence...A is out
avoid using being in the sentences

[quote="abemartin87"]1) Originally developed for detecting cancer, a technique called chemotherapy-59, which can quickly analyze cancerous elements in almost any cell without destroying it , is finding uses in the entire cancer research field. In the sentence above is "it" referr...