function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alitto, Renata A. S. & Bueno, Maristela L.', 2],
    ['Borges, Michela & Amaral, Antonia C. Z.', 2],
    ['Despalatović, Marija & Cvitković, Ivan & Žuljević, Ante', 1],
    ['Fatemi, Yaser & Stöhr, Sabine', 1],
    ['Glück, Franziska U. & Stöhr, Sabine & Bochert, Ralf', 2],
    ['Granja-Fernández, Rebeca & Hendrickx, Michel E.', 2],
    ['Lyman, T.', 53],
    ['Madeira, Patrícia & Kroh, Andreas & Cordeiro, Ricardo', 21],
    ['Mcknight, Donald G.', 13],
    ['Okanishi, Masanori & Fujita, Yoshihisa', 5],
    ['Okanishi, Masanori & Kato, Moe & Watanabe, Hiromi Kayama', 5],
    ['O’Hara, Timothy D. & Thuy, Ben', 3],
    ['Stöhr, Sabine', 6],
    ['Stöhr, Sabine & O’Hara, Timothy D.', 4],
    ['Thuy, Ben & Stöh, Sabine', 2],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=131)',
    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);