• 1 January 1977
    • journal article
    • research article
    • Vol. 171  (6) , 1240-1244
Abstract
A study based upon transversal sampling involving 13 series of 7 animals each does not show a significant circadian rhythm of testosterone and .DELTA.4 androstenedione concentrations in the plasma and testis of the guinea-pig at the age of puberty.