“…Study of MCL reactivity of this family was not possible due to the wide geographical distances separating the members of the family. Mills 1974, Blumenthal et al 1974, Yunis et al 1974, Sybesma et al 1973 Seigler 1973, Gatti et al 1971, Mayr & Mickerts 1971, Svejgaard et al 1971). These reports are of value in the delineation of the size of the HL-A system, and in the study of allelism and linkage.…”