function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aravind, Neelavara Ananthram & Páll-Gergely, Barna', 1],
    ['Asami, Takahiro', 25],
    ['Inkhavilay, Khamla & Sutcharit, Chirasak & Bantaowong, Ueangfa', 3],
    ['Jirapatrasilp, Parin & Pall-Gergely, Barna & Sutcharit, Chirasak', 9],
    ['Nurinsiyah, Ayu Savitri & Hausdorf, Bernhard', 1],
    ['Pall-Gergely, Barna & Sajan, Sheikh & Tripathy, Basudev', 165],
    ['Páll-Gergely, Barna & Hunyadi, András', 5],
    ['Páll-Gergely, Barna & Hunyadi, András & Grego, Jozef', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=222)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);