TY - RPRT TI - Exposure efficiency: an idea whose time has come? AU - John S Evans AU - Scott K Wolff AU - Kanchanasak Phonboon AU - Jonathan I Levy AU - Kirk R Smith PY - 2002 DO - 10.1016/s0045-6535(02)00242-4 UR - https://pubmed.ncbi.nlm.nih.gov/12492166/ ID - 12492166 ER -