When choosing a pricing strategy, it appears that going with an odd price, which results in a dollar figure and cents, such as $3.95, has the biggest impact versus a whole number, such as $10.00. However, the difference between odd and even cents makes less of a difference, as when consumers are comparing $7.99 and $7.98.

11 I am confused whether clubbing is a feature of chronic obstructive pulmonary disease (COPD) or not - you have mentioned that it is not a feature of COPD but some books do say that clubbing is a clinical feature of COPD.

12 A 70-year-old man with chronic obstructive pulmonary disease (COPD) and a past history of myocardial infarction with a left ventricular ejection fraction (LVEF) of 25% is dyspnoeic on slight exertion such as walking, bathing. He is not orthopnoeic and claims to have no paroxysmal nocturnal dyspnoea (PND). He has no wheezing or productive cough and his blood pressure is normal. He has had three episodes of ventricular tachycardia (VT) and has been on amiodarone for the past year. What is the best way to determine the exact cause of dyspnoea in this case?

13 In bronchiectasis, what is the reason for using a bronchodilator if the airways are already dilated?

14 Why is it that asthmatics having a severe attack can be seen clawing their hands?

15 Practical use of steroids: Which form of regimen is better (alternate-day, daily or in pulse form)? What should be the dose (once daily or three times daily or {2/3} in the morning)? For how long, especially when to give short courses as in asthmatics, when we don't need to taper it down?

16 In pregnancy, what is the recommended treatment for bronchial asthma? Is the use of the long-acting beta-adrenergic agonist Seretide, the corticosteroid Symbicort and leucotriene receptor antagonists (LTRAs) recommended?

17 In asthma patients, which is the safest analgesic to use?

18 Is the use of nebulized heparin in the treatment of asthmatic attacks recommended?

19 I would like to ask you about pneumonia and its classifications in particular; what are they?

20 What are the pathological differences in typical and atypical pneumonia?