function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acosta, Luis E. & Fet, Victor', 1],
    ['Al-Saraireh, MOhammad & Yağmur, Ersen Aydın & Afifeh, Bassam Abu', 1],
    ['Kawai, Kazusa & Unnahachote, Thornthan & Suttisatid, Yossaphon', 8],
    ['Kovařík, František', 25],
    ['Kovařík, František & Lowe, Graeme & Elmi, Hassan Sh Abdirahman', 11],
    ['Kovařík, František & Lowe, Graeme & Mazuch, Tomáš', 10],
    ['Kovařík, František & Lowe, Graeme & Ranawana, Kithsiri B.', 5],
    ['Kovařík, František & Lowe, Graeme & Soleglad, Michael E.', 4],
    ['Kovařík, František & Ranawana, Kithsiri B.', 2],
    ['Lourenço, Wilson R. & Qi, Jian-Xin & Zhu, Ming-Sheng', 2],
    ['Monod, Lionel & Duperre, Nadine & Harms, Danilo', 23],
    ['Navidpour, Shahrokh & Fet, Victor & Kovařík, František', 2],
    ['Prendini, Lorenzo', 9],
    ['Prendini, Lorenzo & Bird, Tharina L.', 7],
    ['Prendini, Lorenzo & Loria, Stephanie F.', 55],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=177)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);