This Day in Yankees History: Donnie Baseball Rocks Texas- July 16, 1987 - Pinstripe Alley
Lou Gehrig's disease: Why ALS is forever associated with one of America's baseball greats
Study Says Brain Trauma Can Mimic A.L.S. - The New York Times
Germán says he probably will use less rosin after suspension
Lou Gehrig - Wikipedia
Mel Stottlemyre, New York baseball legend, dead at 77 – New York Daily News
Luckiest Man: The Life and Death of Lou Gehrig: 9780743268936: Eig, Jonathan: Books
Luckiest Man: The Life and Death of Lou Gehrig
You don't take a moment for granted': Giants to recognize ALS awareness on Lou Gehrig Day - The Athletic
Mel Stottlemyre, New York baseball legend, dead at 77 – Hartford Courant
Lou Gehrig, American Experience, Official Site
Baseball Uses Gehrig's Story to Raise Awareness of A.L.S. - The New York Times
Lou Gehrig Spring Training 1930 : r/baseball