What is the classification of the Declaration of Helsinki for AMA citation format? Also, do I note the WMA as the author or the 64th General
It would be a Government/Organization report, 3.15.5 in the online AMA Manual under references. The WMA is the author. To be clear, you might use example 3, which has a "revised" and "effective date" and provide the "adopted" and last "amended" date.