Complex sentence: Dr. Fuad Lechin has been nominated for the Nobel Prize of Medicine, 2001 based on the new treatment of bronchial asthma and myasthenia gravis developed and published by his research group.
Split into simpler sentences: Dr. Fuad Lechin has been nominated for the Nobel Prize of Medicine, 2001. This nomination was based on the new treatment of bronchial asthma and myasthenia gravis developed and published by his research group.