Eine molekulare russische Puppe stellt die Einschlussverbindung [(M+⊂Krone)⊂Ga4L6]11− (M+=Li+, Na+, K+; Krone=[12]Krone‐4, [15]Krone‐5, [18]Krone‐6) dar. Sie entsteht durch Komplexierung des Metallkations durch den Kronenether und den Einschluss des gebildeten Kation‐Kronenether‐Komplexes in den tetraedrischen [Ga4L6]12−‐Cluster.

Differences in antibiotic prescribing patterns are greater than expected. The pattern of antibiotic utilisation in both countries implies that regional control measures and guidelines for antibiotic use in children should be urgently established.

We report a development of severe haemolysis after complete transcatheter closure of patent arterial duct. Aortography and echocardiography revealed no signs of residual shunt. Haemolysis occurred a day after the implantation. Aortography was performed and the extrusion of coil in aorta was evident. The extruded part of the coil was surgically removed. No signs of haemolysis remained.

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