1. A. Y. Rathner [16] together with his co-authors has described the clinics of two pathological syndromes: syndrome of peripheral cervical failure (syndrome of humeral girdle amyotrophia) and natally stipulated myotomic syndrome, having specified that the majority of the surveyed children were revealed to have the elements of the described syndromes. The results of the survey of a group of acrobats, managed by A. Y. Ratner, are also of great interest: 102 of 157 surveyed appeared to have neurologic symptoms [16].

A.J.Ratner (16) beschrieb zusammen mit anderen Autoren den Verlauf von zwei pathologischen postnatalen Syndromenkomplexen: Syndrom der peripheren zervikalen Ungenugendheit (Syndrom der Amiotrophie im Schulterbereich) und natal bedingtes miotonisches Syndrom, indem er hinwies, dass die Elemente der beschriebenen Syndromeinkomplexe bei der Mehrheit der untersuchten Kinder herausgestellt worden waren.