and has a very high wash-out rate. Soldiers who are retraining into Special Forces, who fail any of the above training courses, revert to their primary MOS (job). New recruits, who enlist under the 18X Special Forces Enlistment Program, who fail to complete any of the above ...
Aside from the discovery in 1956 (12) of the correct human chromosome number of 46, most of the descriptions of chromosome abnor- malities came from departments of pediatrics in their study of abnormal children. The first of these was the finding by Lejeune of an extra chromosome 21 in ...