Puska P, Tuomilehto J, Salonen JT, Nissinen A.
Cas Lek Cesk. 1985 Mar 29;124(13):385-9.
PMID: 4005910

Woods A, Moshang J.
Nursing. 2005 Feb;4-8; quiz 8-9. doi: 10.1097/00152193-200502001-00005.
PMID: 15706300

Ross G, Stier J.
Lancet. 1999 Mar 13;353(9156):924. doi: 10.1016/S0140-6736(99)00046-X.
PMID: 10094004

Holmes S.
Nurs Times. 1984 Jul 4-10;80(27):16-8.
PMID: 6565248

Lindsay GM, Robb AJ, Gaw A.
Nurs Stand. 1995 Apr 5-11;9(28):28-30. doi: 10.7748/ns.9.28.28.s39.
PMID: 7748732

King K, Mulholland J.
Prof Nurse. 2002 Sep;18(1):8-9.
PMID: 12238729