Antimicrobial Properties of Heartwood, Bark/Sapwood and Leaves of Juniperus Species. Clark, A.M. J.D. McChesney, and R.P. Adams. 1990 Antimicrobial Properties of Heartwood, Bark/Sapwood and Leaves of Juniperus Species. Phytotherapy Research. 5 pp Read more about Antimicrobial Properties of Heartwood, Bark/Sapwood and Leaves of Juniperus Species.