The Myth of an Afterlife: The Case against Life After Death edited by Michael Martin and Keith Augustine, Rowman & Littlefield, 2015. ISBN 978-0-8108-8677-3. A Traveler's Guide to the Afterlife: Traditions and Beliefs on Death, Dying, and What Lies Beyond by Mark Mirabello, Ph.D. Inner Traditions.
In 1956, Proudfit and Effler 1 reported a simple method of performing pericardial biopsy which provides adequate amounts of tissue for bacteriologic and histologic study. Safe and effective pericardial drainage can be accomplished by the same procedure.
Both a new diagnosis and etiology of the disease were established by pericardial biopsy guided by fluoroscopy (group 1) in 8.3% each, clinical diagnosis was confirmed in 33.3%, and the results were false-negative (no useful information) in 58.3% of the patients.