Coordinate expression of co-located microRNAs. Scatterplots of expression values for microRNAs located adjacently on the same chromosome. (a) miR-16 and miR-15a; Ch13q14.3. (b) miR-16 and miR-15b; Ch3q26.1. (c) miR-143 and miR-145; Ch5q14. (d) miR-99a and let-7c; Ch21q16. (e) miR-195 and miR-497; Ch17p13.1. (f) miR-520g and miR-520h; Ch19q13.42. (g) miR-17-5p, miR-18a, miR-19a, miR-19b, miR-20a, miR-92; Ch13q31.3.