It is difficult to cool children with high fever by the conventional method because they cannot keep quiet in the bed, playing briskly or clinging on to their mother's bosom. We have devised new cooling methods available in any posture of the children. Cooling agents were packed into a rucksack or vest to cool the back, or into a rag doll to cool the axilla. The effectiveness of these devices was examined. The mothers of the patients at the age of 1 to 3 selected one of the three cooling methods randomly. As a result, the rucksack type were the vest type were accepted by their children for many hours, and were effective in lowering bode temperature in 65% of the cases. The mothers also seemed to like the new cooling methods. They commented that their children are free from restraint and the cooling devices are conveniently invisible for them.

1) All students but 1 correctly typed the ABO blood groups, but only 33.2% of students and 63.9% of physicians properly performed cross-matching.
2) Most failures in cross-matching were due to the inability to detect allogeneic antibodies, but 5.2% of students and 2.9% of physicians failed to detect ABO mismatching.
3) Although laboratory practice is suggested to help students to solidify knowledge and comprehend principles, achieving an official goal of residency - gaining competence in performing and interpreting cross-matching independently - appeared difficult.