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.
1 N.B. (album), an album by Natasha Bedingfield. 2  NB (television show), a Scottish TV programme presented by Janice Forsyth, Bryan Burnett and Alan Campbell. 3  NB Global, a British investment company established in 2011. 4  New Balance, a shoe company.  Nigerian Breweries, a beverage company based in Nigeria.