ESR1 and triple-negative breast carcinoma: The average number of CAMLs per 7.5 ml of blood (P = 0.91), the average size of CAMLs (P = 0.44), and the maximum CAML size (P = 0.47) were not significantly different among the 4 molecular subtypes (ER+/HER2-, ER+/HER2+, triple-negative breast cancer, and HER2; the P values were based on the Kruskal-Wallis test).