[Contribution to the study of antithyroid substances. IX. Effect of methyl ether of 2-thio-4-phenyl-6-hydroxypyrimidine alcohol, of 5-methyl alcohol-4-phenyl-2-thiouracil and of 6-methyl alcohol-4-methyl-2-thiuracil on the weight, oxygen consumption and on histological picture of pituitary and thyroid gland of rat, after parenteral administration].