We elaborate on a new technique for computing properties of nucleon-nu
cleon interactions in terms of an effective field theory derived from
low energy NN scattering data, Details of how the expansion is carried
out to higher orders are presented. Analytic formulae are given for t
he amplitude to subleading order in both the S-1(0) and S-3(1)-D-3(1)
channels. (C) 1998 Elsevier Science B.V.