Complex sentence: As the experimental data continued to accumulate, clinical pilot studies were already being organised, although with some trepidation because of the prevailing view that cold was very dangerous for infants, and with spirited disagreement over the relative benefits of selective head against whole body cooling.
Split into simpler sentences: As the experimental data continued to accumulate, clinical pilot studies were already being organised, although with some trepidation because of the prevailing view that cold was very dangerous for infants. There was some controversy over the relative benefits of selective head against whole body cooling.