Dübbers M, Holtkamp G, Cernaianu G, Bludau M, Fischer J, Keller T, Kribs A, Schulten D. Primary anastomosis as a valid alternative for extremely low birth weight infants with spontaneous intestinal perforation. Eur J Pediatr. 2021 Jan 12. doi: 10.1007/s00431-021-03926-2. Epub ahead of print. PMID: 33438068.