function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angus, Robert B & Sadílek, David & Shaarawi, Fatma', 1],
    ['Giron, Jennifer C. & Short, Andrew Edward Z.', 1],
    ['Komarek, Albrecht & Hebauer, Franz', 13],
    ['Minoshima, Yûsuke & Hayashi, Masakazu', 2],
    ['Ribera, Ignacio & Hernando, Carles & Cieslak, Alexandra', 2],
    ['Yang, Zhen-ming & Jia, Fenglong & Jiang, Lu & Guo, Qiang', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    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);