R(>= 2.3.0), MASS, msm, mvtnorm, polycor
R (>= 2.3.0), MASS, msm, mvtnorm, polycor
R (>= 2.5.0), MASS, msm, mvtnorm, polycor
R (>= 2.9.0), MASS, msm, mvtnorm, polycor
R (>= 2.11.0), MASS, msm, mvtnorm, polycor
R (>= 2.13.0), MASS, msm, mvtnorm, polycor
R (>= 2.14.0), MASS, msm, mvtnorm, polycor