function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Coppard, Simon Edward & Campbell, Andrew C.', 7],
    ['Mattoo, Aroosa Jan & Ghosh, Aniket & Nonzom, Skarma', 1],
    ['Naziazeno, Leticia Muxfeldt & Aptroot, André', 1],
    ['Xu, Rong & Su, Wenxin & Wang, Yang & Tian, Shangqing & Li, Yu', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 4, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);