ERRATUM

In the article by Valk, Verbakel, Vankan et al, entitled “Anandamide, a Natural Ligand for the Peripheral Cannabinoid Receptor Is a Novel Synergistic Growth Factor for Hematopoietic Cells,” which appeared in the August 15, 1997 (Vol 90, No 4, pp 1448-1457), reference 6 on page 1455 is incorrect. This reference should be: Valk PJM, Hol S, Vankan Y, Ihle JN, Askew D, Jenkins NA, Gilbert DJ, Copeland NG, de Both NJ, Löwenberg B, Delwel R: The genes encoding the peripheral cannabinoid receptor and α-L-fucosidase are located near a newly identified common virus integration site. Evill J Virol 71:6796, 1997.