The mean dosages ( sd ) were significantly different between the ADRB@ genotypes -LSB- Arg@Arg @ g ( @ ) , Arg@Gly @ g ( @ ) , Gly@Gly @ g ( @ ) , P = @ ; Gln@Gln @ g ( @ ) , Gln@Glu @ g ( @ ) , Glu@Glu @ g ( @ ) , P = @ -RSB- .