From my writing in Writing critique request: Zhou Ziwang gets an injection from the "doctor", this part seems particularly problematic:
Original version: 没有发现了立即而明显的后果，...
I intended for (but clearly fell short of) something along the lines of:
[We] did not observe immediate and obvious side-effects, ...
So let's try again:
I've added a bit more to clarify that we're sitting around for a little bit and simply watching what happens. For something to be observable, it needs to be both "immediate" (e.g., it doesn't happen 1 hour later) and "obvious" (e.g., it's not "we've just destroyed your liver").
Question: Is this clear?
(Also, I want to say thank you very much for all this help!)