PT - JOURNAL ARTICLE AU - C. A. Watts TI - The blue plague. DP - 1972 Apr 01 TA - The Journal of the Royal College of General Practitioners PG - 233--239 VI - 22 IP - 117 4099 - http://bjgp.org/content/22/117/233.short 4100 - http://bjgp.org/content/22/117/233.full SO - J R Coll Gen Pract1972 Apr 01; 22