|DATE DE PUBLICATION||2011-Sep-01|
|TAILLE DU FICHIER||2,64 MB|
en Three specimen preparation procedures were used in conjunction with scanning electron microscopy and energy dispersive X-ray microanalysis to determine, by comparison among preparation methods, both soluble and insoluble elements at...
They are sales, production, food preparation and services. Other research also identified 27.3 million people working in "high contact-intensive" jobs such as barbers and stylists, airline attendants, and food and beverage service.