On 2014 Oct 20, David Mage commented:

This is an excellent review. However, it seems to have overlooked the paper "Neonatal mortality, the male disadvantage" by Naeye RL, Burt LS, Wright DL, Blanc WA, Tatter D, in Pediatrics. 1971 Dec;48(6):902-6, PMID: 5129451, that concluded that the male excess in infant mortality "must" be X-linked. Naeye et al.'s conclusion that an X-linkage is involved has been supported by work following this 1983 paper as shown in the following:

Is excess male infant mortality from sudden infant death syndrome and other respiratory diseases X-linked? Mage DT, Donner EM. Acta Paediatr. 2014 Feb;103(2):188-93. doi: 10.1111/apa.12482. Epub 2013 Dec 20. PMID: 24164639

The X-linkage hypotheses for SIDS and the male excess in infant mortality. Mage DT, Donner M. Med Hypotheses. 2004;62(4):564-7. PMID: 15050108

The fifty percent male excess of infant respiratory mortality. Mage DT, Donner EM. Acta Paediatr. 2004 Sep;93(9):1210-5. PMID: 15384886

A genetic basis for the sudden infant death syndrome sex ratio. Mage DT, Donner M. Med Hypotheses. 1997 Feb;48(2):137-42.PMID: 9076695

Female resistance to hypoxia: does it explain the sex difference in mortality rates? Mage DT, Donner M. J Womens Health (Larchmt). 2006 Jul-Aug;15(6):786-94. Review. PMID: 16910910

On 2014 Oct 20, David Mage commented:

This is an excellent review. However, it seems to have overlooked the paper "Neonatal mortality, the male disadvantage" by Naeye RL, Burt LS, Wright DL, Blanc WA, Tatter D, in Pediatrics. 1971 Dec;48(6):902-6, PMID: 5129451, that concluded that the male excess in infant mortality "must" be X-linked. Naeye et al.'s conclusion that an X-linkage is involved has been supported by work following this 1983 paper as shown in the following:

Is excess male infant mortality from sudden infant death syndrome and other respiratory diseases X-linked? Mage DT, Donner EM. Acta Paediatr. 2014 Feb;103(2):188-93. doi: 10.1111/apa.12482. Epub 2013 Dec 20. PMID: 24164639

The X-linkage hypotheses for SIDS and the male excess in infant mortality. Mage DT, Donner M. Med Hypotheses. 2004;62(4):564-7. PMID: 15050108

The fifty percent male excess of infant respiratory mortality. Mage DT, Donner EM. Acta Paediatr. 2004 Sep;93(9):1210-5. PMID: 15384886

A genetic basis for the sudden infant death syndrome sex ratio. Mage DT, Donner M. Med Hypotheses. 1997 Feb;48(2):137-42.PMID: 9076695

Female resistance to hypoxia: does it explain the sex difference in mortality rates? Mage DT, Donner M. J Womens Health (Larchmt). 2006 Jul-Aug;15(6):786-94. Review. PMID: 16910910