\kɹˈɒsə͡ʊvə stˈʌdɪz], \kɹˈɒsəʊvə stˈʌdɪz], \k_ɹ_ˈɒ_s_əʊ_v_ə s_t_ˈʌ_d_ɪ_z]\
Definitions of CROSSOVER STUDIES
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Studies comparing two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. In the case of two treatments, A and B, half the subjects are randomly allocated to receive these in the order A, B and half to receive them in the order B, A. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. (Last, A Dictionary of Epidemiology, 2d ed)
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Word of the day
beta Aspartic Acid
- An residue in chains that linked at beta-group instead normal, alpha-carboxyl group, polypeptide linkage. It is a result of the spontaneous decomposition aspartic acid or ASPARAGINE residues.