If you read what Nj005 said carefully, AIC accepts e-filing, but it looks like their system is not ready yet. In other words, you are probably stuck with paper for both.
I agree with you, the AIC location should have an x-ray facility nearby or in the same building.
Comparing the two, both AIC and IMC have been in business for a long time here in Singapore, but one difference I see… AIC appears to be mainly one doctor and maybe one secondary. For IMC they have up to a half dozen working at each clinic, which can mean less waiting if you aren’t precious about which doctor to see.