https://www.selleckchem.com/pr....oducts/qnz-evp4593.h
To describe and spatiotemporal distribution of needle reports in San Francisco, and examine spatial relationships between needle reports and needle disposal boxes, needle disposal kiosks, and homeless shelters. We conducted multiple geospatial analyses of a crowdsourced database of non-emergency service requests. We describe changes in discarded needle and bulky item reports across San Francisco between 2010 and 2019, and compared changes in the reporting patterns of these items, while 200-meter Euclidean buffers captured needle rep
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