共 22 条
[1]
CASTERLINE R, 1980, COMMUNICATION 0219
[2]
CASTERLINE R, 1978, COMMUNICATION 0524
[4]
FELDSTEIN PJ, 1978, INT J HEALTH SERV, V8, P541, DOI 10.2190/N2MP-LRYM-88X1-NRJX
[5]
FRIEDMAN EL, 1979, HOSPITALS, V153, P58
[6]
FRIEDMAN EL, 1979, HOSPITALS, V153, P74
[8]
GOODMAN LJ, 1977, REV PUBLIC DATA USE, V5, P37