“…More recently, activity was spurred by a paper by Awaya in 1972. Others, all Japanese, participated in early development (Inatomi, 1977;1979;Isayama and Tagami, 1977;Kani and Ogita, 1979;Kani et al, 1977;Ohta et al, 1979Ohta et al, , 1981. Kani and Ohta and their co-workers are among the leaders in this area of endeavor.…”