hp138Plasmid HP138-puro from Dr. Iain Cheeseman's lab contains the insert Contains Cas9 and is published in Dev Cell. 2017 Feb 27;40 (4):405-420.e2. doi: 10.1016j.devcel.2017.01.012. Epub 2017 Feb 16. This plasmid is availableDownload the latest drivers, firmware, and software for your HP Laser MFP 138fnw. This is HP’s official website to download the correct drivers free of cost for Windows and Mac.