Ribeiro, P. de J.; Sabatés, A. L.; Ribeiro, C. A. The Use of a Therapeuthic Toy As an Instrument of Nursing Intervention When Preparing the Child to Blood Collection. Rev. Esc. Enferm. USP 2001, 35 (4), 420-428. https://doi.org/10.1590/S0080-62342001000400016.