I'm not referring to the ethics of certain medical practices. Just like "why doctors use Technique A as opposed to Technique B".

Also, I already saw [this post][1] about whether health practices are on-topic, but it doesn't seem to have any clear concensus, so I thought I'd ask more specifically about my question here.

[1]: http://meta.health.stackexchange.com/questions/262/are-questions-about-the-practice-of-medicine-on-topic