The researchers included nearly 138,000 married or previously married men aged 50 to 71.
Other researchers include scientists, policy analysts, and visiting scholars from outside the United States.
And the researchers obviously couldn't include companies that did not report training expenses and presumably performed even worse.
Other significant researchers and writers in this field include:
Because the numbers for other racial groups were too small be reliable, the researchers did not include them.
Why does the researcher not include in the questionnaire a question about the person's favourite brand of cigarette?
In this work, the researchers did not include the catalyst, so no recharging.
Many researchers include these methods into programs that try to analyze the termination behavior automatically (so without human interaction).
Other researchers also include those who attempt suicide with the intent to kill themselves in the definition of parasuicide.