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.
Acetylcysteine/nac Acetylcysteine also known as N-acetylcysteine or N-acetyl-L-cysteine (abbreviated NAC) is a derivative of the amino acid L-cysteine. Health benefits come from the fact that Amino acids help the body build protein.