Normal renal length in children

Normal length of solitary kidneys in children

Rottenberg et al. 167 (5): 1255. (1996) 

Renal length in children by age, height, and weight

Han and Babcock. Sonographic measurements and appearance of normal kidneys in children. AJR American journal of roentgenology (1985) vol. 145 (3) pp. 611-6

Normal ovarian volumes in girls

Salardi et al. Pelvic ultrasonography in premenarcheal girls: relation to puberty and sex hormone concentrations. Archives of disease in childhood (1985) vol. 60 (2) pp. 120-5