"Tallest man living". Guinness World Records. Посетено на 10 декември 2020. Disadvantages to his height he lists include not being able to find clothes or shoes that fit or finding it extremely hard to fit into a regular size car."
"Dangerous Growth Stopped for World's Tallest Man". Live Science. 14 март 2012. Посетено на 26 март 2018. Kosen, 29, suffers from both gigantism and acromegaly, according to one of Kösen's doctors Mary Lee Vance, an endocrinologist who specializes in pituitary diseases at the University of Virginia Health System.
