“…This led to the death of the liberal Prince Frederick, who was succeeded by a more militaristic and expansionistic political regime, a fact that probably affected all of Europe. 12,16 In addition to its political and military consequences, MacKenzie's failure contributed to the abolition, for a period of more than 40 years, of biopsy as a way to pose the definite diagnosis of laryngeal cancer. 11,20 Alfred Kirstein is considered the first to have performed a direct examination of the interior of the larynx (on April 23, 1895, in Berlin).…”