Format
This data frame contains the following columns:
Source
Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S
and S-PLUS, Springer, New York. (Appendix A.21) Venables, W. N. and Ripley, B. D. (2002) Modern Applied
Statistics with S (4th ed), Springer, New York. Ludbrook, J. (1994), Repeated measurements and multiple comparisons
in cardiovascular research, Cardiovascular Research,
28, 303-311.