Fu GK, Wilhelmy J, Stern D, Fan HC, Fodor SP.

Anal Chem. 2014 Mar 18;86(6):2867-70. doi:10.1021/ac500459p

Digital encoding of cellular mRNAs enabling precise and absolute gene expression measurement by single-molecule counting.

only 14 to 23 % of the cDNAs were template-switched.