TY - RPRT TI - Are dropouts, dropouts? AU - W H Silverman AU - R P Beech PY - 1979 DO - 10.1002/1520-6629(197907)7:3<236::aid-jcop2290070307>3.0.co;2-b UR - https://pubmed.ncbi.nlm.nih.gov/10243181/ ID - 10243181 ER -