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Investigators for MLB have struck out again in seeking cooperation from a Toronto-based sports doctor, as well as his former assistant, who previously injected pro athletes with HGH and other banned substances.

Researchers and medical experts, including leaders in the study of CTE, caution against rushing to judgment when a former football player commits suicide.

Early research approach to the brain injury dilemma in Canada is as different as the NFL and Canadian Football Leagues' financial statements.

It was a very subtle yet telltale sign that this investigation would be different. The NCAA seemingly violated one of its cardinal tenets when it posted a November letter on its website from its president, Mark Emmert.

"Outside the Lines" investigation finds hazing continued within the Florida A&M University band despite years of warnings.

An "Outside the Lines" investigation this fall has found North Carolina Tech Preparatory Christian Academy to be a unique arrangement on the post-high school athletics scene -- and one playing by its own rules.

A small pharmacy, Adler Apotheke, is a source of Actovegin -- a drug extracted from calf's blood that is not approved for use in either the United States or Canada -- that embattled Toronto sports doctor Anthony Galea injected into professional athletes.

German Dr. Muller-Wohlfahrt, American doctors share high-profile athletes who need treatment.

Healing Hans, as Dr. Hans-Wilhelm Muller-Wohlfahrt is affectionately known, ranks as either the greatest healer since Hippocrates or is a quack with a hyperactive syringe, depending on whom you believe.

German doctor's patients put utmost trust in him.

The University of Texas football program in July 2008 contracted with a recruiting service that employed Willie Lyles.

Who is Dennis Talbott, the man who had access to Ohio State players and the star quarterback?

Ex-player says A-HOPE relationship ended after picking non-preferred college

Player, headmaster see influence even though nonprofit didn't bring player to U.S.

AAU coach, foundation leader acknowledges paying for flights, providing gifts

Former big-time recruit has had a string of bad luck since arriving in America.