Complex sentence: In Portugal, 50 people were reported as affected by clenbuterol in liver and pork between 1998 and 2002, while in 1990, veal liver was suspected of causing clenbuterol poisoning in 22 people in France and 135 people in Spain.
Split into simpler sentences: In Portugal, 50 people were reported as affected by clenbuterol in liver and pork between 1998 and 2002. While in 1990, veal liver was suspected of causing clenbuterol poisoning in 22 people in France and 135 people in Spain.