function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allison, F. R.', 1],
    ['Ball, Ian R.', 6],
    ['Benítez-Álvarez, Lisandra & Mateos, Eduardo', 1],
    ['Benítez-Álvarez, Lisandra & Sluys, Ronald', 1],
    ['Bromley-Schnur, Heather J.', 1],
    ['Gammoudi, Mehrez & Garbouj, Myriam & Egger, Bernhard', 4],
    ['Hellmann, Lindsey & Leal-Zanchet, Ana Maria', 2],
    ['Nurse, Frances R.', 4],
    ['Sluys, Ronald & Kawakatsu, Masaharu', 4],
    ['Sluys, Ronald & Solà, Eduard & Gritzalis, Konstantinos', 3],
    ['Souza, Stella & Morais, Ana Laura & Bichuette, Maria Elina', 4],
    ['Stocchino, Giacinta Angela', 12],
    ['Stocchino, Giacinta Angela & Sluys, Ronald & Manconi, Renata', 2],
    ['Vila-Farré, Miquel & Sluys, Ronald & Almagro, Ío', 3],
    ['Wang, Lei & Chen, Jin-zi & Dong, Zi-mei & Chen, Guang-wen', 2],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=60)',
    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);