There are two articles related to Shakuju Association in NAJOM (North American Journal of Oriental Medicine), Volume 19, Number54, March 2012.
Noriyuki Fujiwara
"The Yi Jing (I Ching) and Oriental Medicine" (p19-20)
Pamela Sokach
"Seminar Report: Shakuju Therapy with Kobayashi Shoji Sensei" (p31)
http://www.najom.org/