共 19 条
[1]
BALLARD C F, 1961, Public Health, V76, P10, DOI 10.1016/S0033-3506(61)80166-2
[2]
BALLARD C F, 1951, Dent Rec (London), V71, P85
[3]
BALLARD CF, 1959, T EUR ORTHOD SOC, P69
[4]
BRASH JC, 1956, AETIOLOGY IRREGULARI
[5]
BROADBENT RH, 1931, ANGLE ORTHODONTIST, V1, P45
[7]
BROSNAHAN LF, 1961, SOUNDS LANGUAGE
[8]
GRABER TM, 1958, AM J ORTHOD DENTOFAC, V44, P906
[9]
GWYNNEEVANS E, 1945, P ROY SOC MED, V38, P535
[10]
HOVELL JH, 1955, T EUR ORTHOD SOC, V31, P155