Research in a minimum of 3 paragraphs tell me : What is the AIUM and SDMS? What are CME credits , how many are need to maintain our sonography license and how do we obtain them? (RDMS) Research in a minimum of 3 paragraphs tell me : What is the AIUM and SDMS? What are CME credits , how many are need to maintain our sonography license and how do we obtain them? (RDMS)