TY - JOUR A1 - Doblhammer, G. A1 - Vaupel, J.W. T1 - Lifespan depends on month of birth Y1 - 2001 DO - 10.1073/pnas.041431898 JF - Proceedings of the National Academy of Sciences of the United States VL - 98 IS - 5 SP - 2934 EP - -2939 ER -