A number of multi-city and other types of studies strongly suggest that these effects-relationships cannot be explained by weather, statistical approaches, or other pollutants.
Theories that weather could explain these effects-relationships were clearly wrong.
mnli hypothesis: Theories that weather could explain these effects-relationships were clearly wrong. premise: A number of multi-city and other types of studies strongly suggest that these effects-relationships cannot be explained by weather, statistical approaches, or other pollutants.