Marek, Gary W. http://orcid.org/0000-0001-8682-2539
Marek, Thomas H.
Evett, Steven R. http://orcid.org/0000-0003-3418-5771
Chen, Yong http://orcid.org/0000-0001-9705-4838
Heflin, Kevin R. http://orcid.org/0000-0001-9666-364X
Moorhead, Jerry E. http://orcid.org/0000-0003-1196-1942
Brauer, David K. http://orcid.org/0000-0002-0523-432X
Article History
Received: 2 December 2019
Revised: 3 November 2020
Accepted: 1 December 2020
First Online: 13 January 2021
Compliance with Ethical Standards
:
: Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual’s income is derived from any public assistance program (not all prohibited bases apply to all programs). Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at 202-720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, SW, Washington, DC 20250-9410, or call 800-795-3272 (voice) or 202- 720-6382 (TDD). USDA is an equal opportunity provider and employer.
: The authors declare that there is no conflict of interest.