“…1970, Magno, Baratta and Leonard 1966, Moeller, Baratta and Leonard 1964, Popov, Plotko, Ibatullin and Ramzaev 1967, Strain, Berliner, Lankau, McEvoy, Pories and Greenlow 1964, Strain, Berliner, Tangeman, Lankau and Pories 1965, Strain, Huegin, Lankau, Berliner, McEvoy and Pories 1964 . In using the hair for this purpose there are several essential advantages .…”