Online course #14- prerecorded, On demand videos:https://echo360.org/section/689ca82e-6b0d-4abd-99f8-a47aedabab81/public, Online notes:https://www.dropbox.com/s/duicqw6gdeq6gv7/IVS, 20Online, 20Course, 20, 2314, 202020, 20NOTES.