Isler C.
RN. 1976 Dec;39(12):15-28.
PMID: 1051532

MacGlothlin WJ.
NLN Publ. 1974;89-94.
PMID: 4499630

Brown EL, Kobayashi F, Yoshitake K, Suzuki K.
Kango Kyoiku. 1974 Apr;15(4):245-51.
PMID: 4494039

[No authors listed]
NLN Publ. 1988 Dec;(15):iii-x, 1-110.
PMID: 3211731

Endo E, Sato M.
Kango Kyoiku. 1988 May;29(5):271-9.
PMID: 3379816

Niimura A.
Kango Kyoiku. 1986 Oct;27(11):681-3.
PMID: 3642019

Higuchi Y.
Kango Kyoiku. 1984 Oct;25(10):644-5.
PMID: 6568335