MEASURING 2ND-ORDER SELECTION BIAS IN A WORK-SITE HEALTH-PROGRAM
Article
SEPULVEDA, M, GOETZ, A, GRANA, J. (1994). MEASURING 2ND-ORDER SELECTION BIAS IN A WORK-SITE HEALTH-PROGRAM
. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE, 36(3), 326-333. 10.1097/00043764-199403000-00010
SEPULVEDA, M, GOETZ, A, GRANA, J. (1994). MEASURING 2ND-ORDER SELECTION BIAS IN A WORK-SITE HEALTH-PROGRAM
. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE, 36(3), 326-333. 10.1097/00043764-199403000-00010