function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akkari, Nesrine & Cheung, David Koon-Bong & Enghoff, Henrik', 8],
    ['Akkari, Nesrine & Enghoff, Henrik', 19],
    ['Akkari, Nesrine & Gilgado, José D. & Ortuño, Vicente M.', 1],
    ['Akkari, Nesrine & Reip, Hans', 1],
    ['Akkari, Nesrine & Voigtländer, Karin', 2],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Decker, Peter & Reip, Hans Simon & Voigtlaender, Karin', 2],
    ['Haľkova, Beata & Drabova, Martina & Mock, Andrej', 1],
    ['Kime, Richard Desmond & Enghoff, Henrik', 48],
    ['Nesrine Akkari & Henrik Enghoff', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=102)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);