Henson and Tarone (1994) proposed that variations in the rate or extent of the decrease in the number and size of breast lobules with increasing age, referred to as breast tissue involution, might be ...
https://doi.org/10.4169/amer.math.monthly.123.2.192 • https://www.jstor.org/stable/10.4169/amer.math.monthly.123.2.192 Copy URL We give a combinatorial proof for an ...