PT  - JOURNAL ARTICLE
AU  - C J Roberts
AU  - S Lloyd
TI  - Proceedings: Cyclic variation of obstetric phenomena in Cardiff.
AID  - 10.1136/jech.28.1.66-b
DP  - 1974 Feb 01
TA  - British Journal of Preventive & Social Medicine
PG  - 66
VI  - 28
IP  - 1
4099  - http://jech.bmj.com/content/28/1/66.3.short
4100  - http://jech.bmj.com/content/28/1/66.3.full
SO  - Br J Prev Soc Med1974 Feb 01; 28