In 2014, Michael Spiteller (Technische Universität Dortmund) and collaborators noted success, also in Angewandte Chemie, that supported the summary the presence of tramadol in Individuals tree roots was the results of tramadol acquiring been ingested by human beings and having been administered to cattle (by farmers from the area); Spiteller https://koningapotheek.nl/product/tramadol-kopen/