[Collection and transport of urine samples by filter paper absorption method. The method of the determination of sodium, potassium and creatinine concentration in urine (author's transl)].
D000042:Absorption; D003404:Creatinine / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D010209:Paper; D011188:Potassium / Q000652:urine*; D012964:Sodium / Q000652:urine*; D013048:Specimen Handling / Q000379:methods*
D012964:Sodium; D003404:Creatinine; D011188:Potassium