However, despite being very ill, it can take a long period of time for «natural» death to come. (vets-now.com)
Of course, you must also keep in mind that longer time frames also take a longer period of time to work themselves out. (morpheustrading.com)
Traditionally, suppliers face problems with their customers taking long periods of time to pay their balances and, in turn, making it difficult for them to obtain business credit in the interim. (ethnews.com)