1989
  1. Noordhoek,G.T., Hermans,P.W., Paul,A.N., Schouls,L.M., van der Sluis,J.J. and van Embden,J.D.
    Treponema pallidum subspecies pallidum (Nichols) and Treponema pallidum subspecies pertenue (CDC 2575) differ in at least one nucleotide: comparison of two homologous antigens
    Microb Pathog (1989) 6, 29-42. PubMed  Europe PubMed