Plowman N.
Radiography. 1974 Jan;40(469):2.
PMID: 4810258

Peterson LH.
Physiologist. 1979 Feb;22(1):4-5.
PMID: 375264

Duda P.
Cesk Fysiol. 1987;36(6):481-90.
PMID: 3322572

Baker CH, Davis DL, Ellison LT, Schoenborn CE, Little RC, Waugh WH.
Physiologist. 1984 Apr;27(2):64-6.
PMID: 6374698

Raff H, Benos D, Reich M.
Am J Physiol Renal Physiol. 2004 Nov;287(5):F859-60. doi: 10.1152/classicessays.00001c.2004.
PMID: 15475536

Tipton CM.
Adv Physiol Educ. 2009 Dec;33(4):243-52. doi: 10.1152/advan.00058.2009.
PMID: 19948668

[No authors listed]
Ann Hum Biol. 1980 Jul-Aug;7(4):381-5. doi: 10.1080/03014468000004471.
PMID: 7436352