Collaborative studies and controlled clinical trials.
D012080:Chronic Kidney Disease-Mineral and Bone Disorder / Q000150:complications; D002986:Clinical Trials as Topic / Q000379:methods* / Q000592:standards; D004992:Ethics, Medical; D005069:Evaluation Studies as Topic; D006130:Growth Disorders / Q000209:etiology; D006801:Humans; D007258:Informed Consent; D007674:Kidney Diseases / Q000150:complications*; D007676:Kidney Failure, Chronic / Q000150:complications; D010817:Physician-Patient Relations; D011367:Professional Staff Committees; D011446:Prospective Studies; D011897:Random Allocation; D012107:Research Design; D013223:Statistics as Topic