The industry wants to exploit better so-called "big data", which has already allowed it to get better margins with higher prices on top-of-the-range tractors. Once technologically advanced equipment becomes standard in the US and the West, the companies will then be able to exploit the need for increased yields in the developing world as well. In the West, that initially involved real-time yield data - a tractor that could count how many bushels (the unit of measure for grain) it was harvesting. But it has grown to include cloud-based subscription data services that allow farmers wireless access to their data and gives them planting advice. Earlier this month, when Monsanto announced its $930m acquisition of Climate Corporation, a data science company, chief executive Hugh Grant said data represented a potential $20bn sales opportunity for the industry.

11 Dear authors, why are gastric ulcers more common along the lesser curve, near the pylorus of the stomach?

12 What is the best time of day to administer omeprazole, and why?

13 Is it safe to use the drugs omeprazole and ranitidine during pregnancy?

14 Are non-steroidal anti-inflammatory drugs harmful to the stomach when taken parenterally, for example by intravenous or intramuscular routes?

15 Is it safe to give a patient with a past history of bleeding peptic ulcer aspirin in an antiplatelet dose of 75-325 mg?

16 Is sulpiride effective in the treatment of a peptic ulcer or gastrooesophageal reflux disease (GORD)?

17 Is clopidogrel gentle on the stomach?

18 Is there a drug interaction between non-steroidal anti-inflammatory drugs (NSAIDs) and proton pump inhibitors (PPIs)?

19 Do antacids enhance mucosal resistance in the gastric mucosa? If so, please indicate the mechanism.

20 Is there a drug interaction between antacids and H2-receptor blockers?