“…If a hypothesized link turns out to be fruitful, it leads to new medical knowledge such as a treatment for a currently untreatable disease, a treatment that is more cost efficient or has fewer side effects, or an advance in basic science. Subsequent to Swanson's work on Raynaud's, DiGiacomo, Kremer, & Shah (1989) conducted clinical tests and determined that secondary, but not primary, Raynaud's could be effectively treated by fish oil. Migraine/magnesium connections have also been published after the dates used to establish the literature-based connection (Castelli, Meossi, Domenici, Fontana, & Stefani, 1993;Gallai, Sarchielli, Morucci, & Abbritti, 1993).…”