Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).

Ex Input:
Abstract: The effects of parental smoking on IgE and IgD levels in cord serum and subsequent infant allergy were investigated in an unselected series of 186 European newborn infants. Maternal smoking caused a significant rise in both IgE (p less than 0.05) and IgD (p less than 0.05), a finding that was most apparent in newborn infants with a negative biparental history of allergy (p less than 0.025 and p = 0.005, respectively). Furthermore, newborn infants of nonallergic parents had a more than threefold (p less than 0.01) higher incidence of elevated cord IgE (greater than or equal to 1.20 IU/ml) and a fourfold (p = 0.005) higher risk of developing definite or probable atopic disease before 18 months of age if the mother smoked than if she did not. Paternal smoking did not influence, in whatever the subgroup, cord IgE or subsequent infant allergy but increased cord IgD (p less than 0.001) among newborn infants with a negative family history even after controlling for maternal smoking (p less than 0.04). These results suggest that parental smoking in some way affects the fetal immune system, probably via substances in tobacco smoke. Maternal smoking in particular appears to exert a pronounced effect on the IgE system already in fetal life, predisposing even "low-risk" infants to subsequent sensitization, probably in synergy with a later acquired mucosal damage that would facilitate penetration of foreign matter. Pregnant women and mothers should be encouraged to try and give up smoking that might help to prevent allergic disease in their infants. 
 Which is the apt title for the abstract? option1: Maternal smoking influences cord serum IgE and IgD levels and increases the risk for subsequent infant allergy. option2: Skull x-ray examinations after head trauma. Recommendations by a multidisciplinary panel and validation study.

Ex Output:
Maternal smoking influences cord serum IgE and IgD levels and increases the risk for subsequent infant allergy.


Ex Input:
Abstract: Random-dot stereograms were found to be capable of producing fusional vergence amplitudes in the absence of monocular contours. These vergence amplitudes are not an artefact of monocular contours provided by the target borders or test instrument and are comparable in range to vergence amplitudes measured clinically with second degree fusion targets in an amblyoscope. We conclude that diplopia of monocularly recognisable contours is not necessary for producing fusional vergence amplitudes. 
 Which is the apt title for the abstract? option1: Vergence amplitudes with random-dot stereograms. option2: Coronary vasodilation by nitrates is not mediated by the prostaglandin system: a quantitative cineangiographic study.

Ex Output:
Vergence amplitudes with random-dot stereograms.


Ex Input:
Abstract: Three case presentations illustrate that the clinical signs and symptoms of occipital neuralgia may be produced by myofascial pain. Assessment of myofascial trigger points is needed before making a diagnosis of occipital neuralgia. Myofascial trigger points can be effectively treated with minimally invasive procedures, thereby avoiding irreversible surgical interventions. 
 Which is the apt title for the abstract? option1: Myofascial pain may present clinically as occipital neuralgia. option2: Pulmonary nodules: detection of calcification by linear and pluridirectional movement in tomographic study [letter]

Ex Output:

Myofascial pain may present clinically as occipital neuralgia.


