[Duration:12 h] Brams, Matthew; Mao, Alice R.; Doyle, Robert L. Onsetof Efficacy of Long-Acting Psychostimulants in Pediatric Attention-Deficit/Hyperactivity
administration of fentanyl for pain relief in labour (PDF). RCP. [2015-10-07]. (原始内容存档 (PDF)于2016-03-04). Onsetofaction after IV administration of Fentanyl
Felson, D. T.; Yood, R. A.; Walker, A. M. The lag time between onsetof symptoms and diagnosis of rheumatoid arthritis. Arthritis and Rheumatism. 1994, 37 (6):