Author:Aiken, S.G. Treatments AAiken1984a Aiken1985a Aiken1988a Aiken1990a Aiken1990b Aiken1991a Aiken1991b Aiken1992a Aiken1993a A cont.Aiken1993b Aiken1994a Aiken1995a Aiken1995b Aiken1995c Aiken1995d Aiken1997a Aiken1997b Aiken2002a BBrysting2003a Brysting2004a CChen2006a Consaul1993a MMclachlan1989a RRamesar-fortner1995a WWarwick1986a