TY - GEN AU - Cabanes, Anna AU - Ascunce, Nieves AU - Vidal, Enric AU - Ederra, María AU - Barcos, Ana AU - Erdozáin, Nieves AU - Lope Carvajal, Virginia AU - Pollan-Santamaria, Marina PY - 2009 DO - 10.1186/1471-2458-9-449 SN - 1471-2458 UR - http://hdl.handle.net/20.500.12105/7109 AB - BACKGROUND: While the timing of reproductive events varies across populations, a downward trend in age at menarche has nevertheless been reported in most of the developed world over the past century. Given the impact of change in age at menarche on... LA - eng PB - BioMed Central (BMC) KW - Adolescent KW - Age Factors KW - Aged TI - Decline in age at menarche among Spanish women born from 1925 to 1962 TY - research article ER -