Aprincipal procedure is one that is performed for definitive treatment rather than for diagnostic or exploratory purposes, or one necessary to take care of a complication.

If this is a true or false question then your answer is True

how to know you're in love with someone you've just started getting to know can be a bit tricky because — feelings aside — they are technically still a stranger to you. although you might feel the urge to dive in and start professing your undying love for them asap, it's important to remember that it can be easy to confuse feelings of immense attraction with actual love.