Oral contraceptive use and risk of myocardial infarction: an Italian case-control study.

change in workload at the perigee, there was a reduction in out of hours calls at the apogee, when the moon's gravitational pull is at its lowest. Further analysis showed that any apparent effect could be explained by the occurrence of more bank holidays on the full moon days in our study period. Though the reduction in workload at the apogee remained significant (p = 0 032).