Risk assessment of time-varying factors on an acute event using the case-crossover method

Peggy Sekula & Martin Schumacher
The analysis of a case series might be advantageous if both, the event and risk factors of interest, are rare and, thus, even case-control studies reach their limitations concerning feasibility and ability of risk estimation. Such situation arose when the risk of drugs to cause the severe cutaneous [for full text, please go to the a.m. URL]