Lannen, P. K., Wolfe, J., Prigerson, H. G., Onelov, E., & Kreicbergs, U. C. (2008). Unresolved Grief in a National Sample of Bereaved Parents: Impaired Mental and Physical Health 4 to 9 Years Later. American Society of Clinical Oncology.

Lannen, Patrizia K., Joanne Wolfe, Holly G. Prigerson, Erik Onelov, och Ulrika C. Kreicbergs. Unresolved Grief in a National Sample of Bereaved Parents: Impaired Mental and Physical Health 4 to 9 Years Later. American Society of Clinical Oncology, 2008.

Lannen, Patrizia K., et al. Unresolved Grief in a National Sample of Bereaved Parents: Impaired Mental and Physical Health 4 to 9 Years Later. American Society of Clinical Oncology, 2008.