title: Changes in the relative weight of the adrenals and kidneys in populations of the gray rat.
mesh_terms: D000311:Adrenal Glands / Q000033:anatomy & histology*; D000367:Age Factors; D000818:Animals; D005260:Female; D007668:Kidney / Q000033:anatomy & histology*; D008297:Male; D051379:Mice; D009929:Organ Size; D011153:Population; D051381:Rats / Q000033:anatomy & histology / Q000502:physiology*; D012621:Seasons; D012737:Sex Factors