Contents: Ruth Baumann-Hölzle: Introduction. Ruth Baumann-Hölzle: Ambivalence of medical technological progress in neonatal intensive care. Emanuela Manea: Ayse - weighing 600 grams. Kurt von Siebenthal: My experience of Ayse as an "external" physician. The Neonatology Clinic in numbers. Why I became involved in the medical-ethical working group on neonatology: Members of the ethical working group introduce themselves. Gabriel Duc: Neonatology and ethics: The biography of an inevitable encounter. Diego Mieth: The very small premature infant: Ethical questions from a neonatologist's perspective. Ruth Baumann-Hölzle: Medical and nursing ethical decision-making in a pluralistic society - a historical overview. Emanuela Manea: Simon - only two days in the world. Kurt von Siebenthal/Ruth Baumann-Hölzle: The interdisciplinary "Zurich Model" for decision-making regarding medical and nursing ethical issues in neonatal intensive care. Kurt von Siebenthal: The case of Alban: Testing the model. Ruth Baumann-Hölzle: Model development. Hans-Ulrich Bucher: Experiences with the model. Silvia Rauch: My experiences with the model. Kati Hübner: Balancing between knowledge and conscience. Max Baumann: Legal issues in neonatology - A discussion proposal. Christian Kind: Critical questions regarding the decision-making model: The Zurich Model from the perspective of another neonatologist. Marco Maffezoni: The interdisciplinary national research project "Evaluation of a Framework for Ethical Decision-Making in Neonatal Intensive Care" - a brief description. Ruth Baumann-Hölzle: Outlook.