Delivery

Exposure to cleaning products while in the womb could be linked to persistent wheezing in young children, University of Bristol research suggests.
Experts looked at families' use of a range of products such as bleach, paint stripper and carpet cleaners.
Children born into the 10% of families which used these products the most were twice as likely to suffer from wheezing as those who used the least.
The study of 14,000 children from birth is published in the journal Thorax.
The researchers said, while their study suggested a link between prenatal exposure and wheezing, exposure after birth could also be a factor.
Further research is under way to look for physiological changes in the children's lungs which would indicate the effect had occurred while they were in the womb.
Wheezing can be a sign a child will go on to develop asthma.
The study, which is part of the University of Bristol's Children of the 90s research, involved 7,019 families.
Pregnant women were asked how often they used common household cleaning products.
The 11 most common were disinfectant (used by 87.4%), bleach (84.8%), carpet cleaner (35.8%), window cleaner (60.5%), dry cleaning fluid (5.4%), aerosols (71.7%), turpentine/white spirit (22.6%), air fresheners - spray, stick or aerosol (68%), paint stripper (5.5%) , paint or varnish (32.9%) and pesticides/insecticides (21.2%).
The researchers then calculated the total chemical burden for each family, depending on how often they used each product - then they compared it with each mother's report on whether her child had experienced wheezing.