PT  - JOURNAL ARTICLE
AU  - Peter R. Williams
TI  - Opportunistic surveillance of children
DP  - 1985 May 01
TA  - The Journal of the Royal College of General Practitioners
PG  - 248--250
VI  - 35
IP  - 274
4099  - http://bjgp.org/content/35/274/248.2.short
4100  - http://bjgp.org/content/35/274/248.2.full
SO  - J R Coll Gen Pract1985 May 01; 35