Complex sentence: In 1975, the United States National Institutes of Health (NIH) convened a conference to standardize the naming and recommended eliminating the possessive form, although both the possessive and non-possessive forms are used by the general population.
Split into simpler sentences: In 1975, the United States National Institutes of Health convened a conference to standardize the naming and recommended eliminating the possessive form. Although both the possessive and non-possessive forms are used by the general population.