Dr. Angermann in Iserloh (a small town in North-Rhine Westphalia) informed Grünenthal about sensory disorders he experienced in his toes and fingers after taking Thalidomide. According to Angermann, his sister-in-law noticed the same problem.
Grünenhtal’s Dr. Günther Sievers and Dr. Gotthold Werner responded a couple of weeks later repeating what they had already said to Düsseldorf neurologist Dr. Voss: that they had never heard of any sensory disorders in connections with Contergan. (Sensory disorders are often a form of polyneuritis.)
Source: Anklageschrift (indictment) from 1967, today archived at the National Archives of North Rhine-Westphalia in Duisburg, Germany (Rheinland Division, Gerichte Rep. 139, No. 1–396), pp. 75-76.