Checking: Keep the methods you use to check as simple as possible, e.g. On delivery, check what the food looks like, its packaging, and the best before or use by dates; जांच करना ः जांच के तरीकों को जितना सम्भव हो सके उतना सरल रखें ; जैसे
50.
Do not mix drugs which you have purchased earlier from a pharmacist with drugs prescribed by a doctor or pharmacist without checking. डाक्टर या फारमैसिस्ट से पूर्व जाँच किये बिना फारमैसिस्ट से खरीदी गई दवाइयों के साथ