O-ring test has been developed by Dr. Keishou Omura (Ed. Yoshiaki Omura). The strength of the O-ring formed by the thumb and index finger of the right hand of the subject is tested to decide if the drug held in the left hand is good or not for the subject's illness. From tests I have found that when the subject thinks of a drug in Yitang (Extra I), the same purpose may be reached.
Method:
For example when the abdominal diagnosis tells there is a pain and distension in the chest region, the patient is instructed to touch his Qimen (Liv 14) with his left index finger and the O-ring test is conducted on the right hand.
Radix Bupleuri is good for pain and distension in the chest region. But for determination of the best prescription in which Radix Bupleuri is included, different ones are applied to Yintang (Extra l). When the best one touches Yintang (Extra 1). the O-ring formed by the patient cannot be separated. By using this method, even no drugs are applied to, one can decide the best prescription.
It is thought that in the O-ring test the subject is influenced-by electric field and magnetic field. Why does mental application of drugs produce the same effect? If the qi of the performer can affect the patient? No matter what reason it is. the above observation is presented to you for consideration.
Kazhuda, Mashakashu

An idea of inner diagnostic method