SPECIAL NOTE ON DOWNLOADING *** Downloading this app is a 2-step process: the first step is the download of the app template, and the second step is the full download of the app content. This can take 5-10 minutes on Wi-Fi on 64-bit devices. 32-bit devices may take longer. Do not exit the app until both steps are complete. *** Currently, the amount of clinical information is doubling every 18 months and the pace is getting faster. Stay up to date with the Professional Version MSD Manual app. T