title: A simple technique for collecting blood for population studies of enzyme polymorphisms and haemoglobins.
mesh_terms: D000135:Acid Phosphatase / Q000097:blood; D001800:Blood Specimen Collection; D004591:Electrophoresis, Polyacrylamide Gel; D004592:Electrophoresis, Starch Gel; D004912:Erythrocytes / Q000201:enzymology*; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase / Q000097:blood; D008623:Mercaptoethanol; D008722:Methods; D011110:Polymorphism, Genetic; D011153:Population; D013696:Temperature; D013997:Time Factors
chemical_list: D006454:Hemoglobins; D007527:Isoenzymes; D008623:Mercaptoethanol; D007770:L-Lactate Dehydrogenase; D000135:Acid Phosphatase