Second difficult issue explains different places of acupuncture pulse diagnosis as cunkou 寸口 and chicun 尺寸. When cunkou is the reunion of yin and yang meridians over the radial artery, chicun is the separation of yin and yang and separation to yin and yang meridians.
This issue confirms that this chicun place we use for differential diagnosis of condition of yin and yang in different meridians, when cunkou was used to find overall condition of yin and yang in all meridians regarding fifty daily interchanges.
This differentiation we may easy observe on the places cunkou and chicun during pulse diagnosis