Angina vs. angina pectoris?

Some sources define "angina" as a "disease of the throat" while others say it is a "chest pain". Do you always have to specify "angina pectoris" when referring to the heart pain or can you say simply "angina" (some places just say "angina").
Update: Definitions of angina on the Web:

any disease of the throat or fauces marked by spasmodic attacks of intense suffocative pain

angina pectoris: a heart condition marked by paroxysms of chest pain due to reduced oxygen to the heart
wordnetweb.princeton.edu/perl/webwn
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