: It is part of a DOI (Digital Object Identifier) for a scientific article in the Annual Review of Microbiology titled "Biological consequences and advantages of asymmetric bacterial growth."
The number does not correspond to a valid United States ZIP code. ZIP codes in the United States are five-digit numerical codes, and none currently begin with "1556". While some nearby regions in Pennsylvania use similar-looking ZIP codes, such as 15522 (Bedford) or 15622 (Champion), there is no record of a 155622 ZIP code in the official USPS system. 155622 zip
The Effects of Ventilation, Humidity, and Temperature ... - PMC : It is part of a DOI (Digital
If you intended to look up a different location, the following similar ZIP codes are located in Pennsylvania: Similar ZIP Codes in Pennsylvania The Effects of Ventilation, Humidity, and Temperature
: Primarily located in Westmoreland County , this area encompasses the city of Champion and has a low population density of roughly 19 people per square mile.