- 1034/j.1600-0536.2003.00050.x. PMID 12755725. S2CID 22975127. Rönnau AC,
Wulferink M,
Gleichmann E, et al. (November 2000). "Anaphylaxis to polyvinylpyrrolidone...
- 2020 (8): 100768. doi:10.1101/pdb.top100768. PMID 32747588.
Beumer C,
Wulferink M,
Raaben W,
Fiechter D,
Brands R,
Seinen W (November 2003). "Calf intestinal...
- doi:10.1007/s11270-013-1625-y. ISSN 0049-6979. S2CID 97367168.
Beumer C,
Wulferink M,
Raaben W,
Fiechter D,
Brands R,
Seinen W (November 2003). "Calf intestinal...