Which of the following discoveries happened most recently?

first type of contact lens
first open heart surgery
laser eye surgery
measles vaccine

The concept of ensures that wounded soldiers receive treatment based on their severity of their wounds rather than their seniority

Why is sustainable agriculture so important?

In a two to three page paper, examine the history and development of the healthy people initiatives. discuss some of the successes and shortfalls of the three initiatives thus far; including healthy people 2000, healthy people 2010, and healthy people 2020. be sure to include statistical data from the initiatives to support your position. don't forget to cite your sources.