BifixedContCont         Bivariate fixed-effects model to assess surrogacy 
			in meta-anal framework (cont-cont setting)
BimixedContCont         Bivariate mixed-effects model to assess surrogacy 
			in meta-anal framework (cont-cont setting)
FixedContContIT         Fixed-effect approach to assess surrogacy in info-
			theoretic framework (cont-cont setting)
MICA.ContCont   	Compute MICA, causal-inf framework (cont-cont setting)
MixedContContIT		Mixed-effect approach to assess surrogacy in info-
			theoretic framework (cont-cont setting)
ICA.ContCont   		Compute ICA, causal-inf framework (cont-cont setting)
UnifixedContCont        Univariate fixed-effects model to assess surrogacy 
			in meta-anal framework (cont-cont setting)
UnimixedContCont        Univariate mixed-effects model to assess surrogacy 
			in meta-anal framework (cont-cont setting) 