There are many people who have nobody near to see their need for help and often nobody to give it even when the need is known. The old, the handicapped, the homeless and friendless -- these are the people for whom help may not come, because nobody sees. It may not have occurred ...
Children living near a smelter complex in San Luis Potosi, Mexico. Environ. Res. 1993, 62, 242–250. [Google Scholar] [CrossRef] [PubMed] Cárdenas González, M.; Osorio-Yáñez, C.; Gaspar-Ramírez, O.; Pavkovic, M.; Ochoa-Martínez, A.; López-Ventura, D.; Medeiros, M.; ...