Complex sentence: Ralph Molnar contends that despite the long history of recognized pathologies in theropod dinosaurs the topic had been almost completely overlooked in the scientific literature of languages including English, French, German, Russian, Spanish, Japanese, and Chinese.
Split into simpler sentences: Ralph Molnar contends that despite the long history of recognized pathologies in theropod dinosaurs the topic had been infrequently discussed in the scientific literature. Molnar surveryed literature in many languages including English, French, Germany, Russian, Spanish, Japanese, and Chinese.