Lee S, Martire LM, Damaske SA, Mogle JA, Zhaoyang R, Almeida DM, Buxton OM. Covariation in couples' nightly sleep and gender differences. Sleep Health. 2018 Apr;4(2):201-8. doi: 10.1016/j.sleh.2017.10.009
Lock EF, Ziemiecki RM, Marron J, Dittmer DP. Efficiency clustering for low-density microarrays and its application to QPCR. BMC Bioinformatics. 2010 Jul;11(386).