We thank Zoller and colleagues for their interest in our article and agree that inconsistent terminology should be avoided and corrected.
Their comment that the terms chorionicity and zygosity need to be clearly differentiated is entirely correct. We support this request, even though in our article we used the terms occasionally in the common, imprecise, sense, not the desirable clarity.
The Quintero classification is useful and its use is recommended. However, in Figure 2, mild FFTS is mentioned without the finding of a stuck twin..
Prof. Dr. med. Rolf Maier, Marburg
Prof. Dr. med. Joachim W. Dudenhausen
Kliniken für Geburtsmedizin
Charité Campus Virchow-Klinikum
Augustenburger Platz 1
13353 Berlin, Germany
Conflict of interest statement
The authors declare that no conflict of interest exists according to the guidelines of the International Committee of Medical Journal Editors.
|1.||Dudenhausen JW, Maier RF: Perinatal problems in multiple births. Dtsch Arztebl Int 2010; 107(38): 663–8. VOLLTEXT|