In 1970, the number of HMOs declined to fewer than 40. Paul M. Ellwood, Jr., often called the father of the HMO, began having discussions with what is today the U.S. Department of Health and Human Services that led to the enactment of the Health Maintenance Organization Act of 1973.
How is Nutrient Broth (microbiology) abbreviated? NB stands for Nutrient Broth (microbiology). NB is defined as Nutrient Broth (microbiology) very rarely.
N.B. is an abbreviation for the Latin nota bene, which means note well.. It is normally used at the beginning of a sentence in order to inform the reader that the following words are of great importance. Written 12 Jun 2013 â¢ View Upvotes â¢ Asked to answer by Anonymous. Related Questions. More Answers Below.