TY  - JOUR

T1  - LETTER TO THE EDITOR: SAMPLE SIZES CALCULATIONS FOR ORDERED CATEGORICAL DATA by J. Whitehead,Statistics in Medicine, 12, 2257-2272 (1993).

JO  - Statistics in Medicine

UR  - https://doi.org/10.1002/(sici)1097-0258(19960530)15:10%3C1065::aid-sim288%3E3.0.co;2-9

PY  - 1998/12/04

AU  - JULIOUS SA

AU  - CAMPBELL MJ

ED  - 

DO  - DOI: 10.1002/(sici)1097-0258(19960530)15:10<1065::aid-s

PB  - Wiley

VL  - 15

IS  - 10

SP  - 1065

EP  - 1066

Y2  - 2025/12/06

ER  -