共 7 条
- [2] FITZGERALD JF, 1987, JAMA-J AM MED ASSOC, V258, P218
- [3] Fleiss J. L., 1981, STAT METHODS RATES P, V2nd, P212
- [6] USE OF THE HOSPITAL IN A RANDOMIZED TRIAL OF PREPAID CARE [J]. JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1988, 259 (09): : 1343 - 1346