Simpson I J, Black P N, Couch R A
N Z Med J. 1986 Dec 10;99(815):945-6.
Surreptitious diuretic use was found in a patient with longstanding hypokalaemia thought to be due to Bartter's syndrome. Measurement of urinary chloride excretion and repeated qualitative testing for diuretics in the urine were necessary to make a diagnosis.
