Reddy DD.
Indian J Otolaryngol Head Neck Surg. 2006 Jan;58(1):5. doi: 10.1007/BF02907727.
PMID: 23120225

[No authors listed]
Cal State J Med. 1904 Mar;2(3):70.
PMID: 18733025

Vize R.
BMJ. 2012 Sep 07;345:e6071. doi: 10.1136/bmj.e6071.
PMID: 22960465

[No authors listed]
Nurs Stand. 1990 Mar 14;4(25):18-9. doi: 10.7748/ns.4.25.18.s33.
PMID: 27238126

Frise C.
Obstet Med. 2017 Sep;10(3):103. doi: 10.1177/1753495X17730799. Epub 2017 Oct 06.
PMID: 29051775

Morgan J.
Lancet Gastroenterol Hepatol. 2019 Mar;4(3):196. doi: 10.1016/S2468-1253(19)30009-3. Epub 2019 Feb 08.
PMID: 33169685

Halpin H.
Nurs Stand. 1993 Feb 10-16;7(21):20-1.
PMID: 8435302