Since qigong has such a variety of styles and such a large number of practitioners all over the world , the descriptions presented here are not comprehensive but exemplary .
Other researchers and practitioners can collaboratively explore and widely accumulate such descriptions .
Since qigong has such a variety of styles and such a large number of practitioners all over the world , the descriptions presented here are not comprehensive but exemplary , so that other researchers and practitioners can collaboratively explore and widely accumulate such descriptions .