function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Edgecombe, Gregory D. & Hollington, And Lauren M.', 2],
    ['Enghoff, Henrik & Akkari, Nesrine & Pedersen, Jan', 1],
    ['Hollington, L. M. & Edgecombe, G. D.', 5],
    ['Pugh, P. J. A.', 1],
    ['Thofern, Detlef & Dupérré, Nadine & Harms, Danilo', 1],
    ['Zarei, Roghaieh & Rahimian, Hassan & Mirmonsef, Hassan', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);