APA (7th ed.) Citation

Oikonomou, J., Aschoff, A., Hashemi-Kalibar, S., & Kunze, S. (1999). New valves - new dangers?: 22 valves (38 probes) designed in the 'Nineties in ultralong-term tests (365 days). European journal of pediatric surgery, 9, . https://doi.org/10.1055/s-2008-1072307

Chicago Style (17th ed.) Citation

Oikonomou, J., Alfred Aschoff, Seyed-Bahram Hashemi-Kalibar, and Stefan Kunze. "New Valves - New Dangers?: 22 Valves (38 Probes) Designed in the 'Nineties in Ultralong-term Tests (365 Days)." European Journal of Pediatric Surgery 9 (1999). https://doi.org/10.1055/s-2008-1072307.

MLA (9th ed.) Citation

Oikonomou, J., et al. "New Valves - New Dangers?: 22 Valves (38 Probes) Designed in the 'Nineties in Ultralong-term Tests (365 Days)." European Journal of Pediatric Surgery, vol. 9, 1999, https://doi.org/10.1055/s-2008-1072307.