共 23 条
[2]
BERNTHPETERSEN P, 1981, ACTA OPHTHALMOL, V59, P198
[4]
*CAT MAN GUID PAN, 1993, AHCPR PUB
[5]
Cohen J., 1988, Statistical Power Analysis for the Behavioral Sciences, V2
[6]
REPRODUCIBILITY AND RESPONSIVENESS OF HEALTH-STATUS MEASURES - STATISTICS AND STRATEGIES FOR EVALUATION
[J].
CONTROLLED CLINICAL TRIALS,
1991, 12 (04)
:S142-S158
[9]
QUALITY-OF-LIFE IN PATIENTS WITH CHRONIC AIR-FLOW LIMITATION
[J].
BRITISH JOURNAL OF DISEASES OF THE CHEST,
1987, 81 (01)
:45-54