0119 Shift work, long working hours, and physical labour in relation to menstrual function: the Nurses' Health Study 3.
Lawson C, Johnson C, Chavarro J, Lividoti Hibert E, Whelan E, Rocheleau C, Grajewski B, Schernhammer E, Rich-Edwards J. 0119 Shift work, long working hours, and physical labour in relation to menstrual function: the Nurses' Health Study 3. Occup Environ Med. 2014 Jun; 71 Suppl 1:A13.