function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Fad, Hassan H. & El-Torkey, Ashraf M.', 1],
    ['Connior, Matthew B. & Kovarik, Peter W. & Iii, Stephen Chordas', 1],
    ['Cruz, Ian Niel dela & Hartini, Sri & Dwibadra, Dhian', 16],
    ['Ghahari, Hassan & Mazur, Slawomir & Ostovan, Hadi', 2],
    ['Herger, Peter & Germann, Christoph', 1],
    ['Lackner, Tomáš & Vienna, Pierpaolo', 1],
    ['Majka, Christopher', 1],
    ['Mazur, S. & A. V & A. V', 2],
    ['Mazur, Sławomir & Byk, Adam', 1],
    ['Mazur, Sławomir & V, Alexey & V, Alexander & Barševskis, Arvids', 2],
    ['Penati, Fabio', 7],
    ['Peschel, Rüdiger', 4],
    ['Webster, Reginald P. & Makepeace, Scott & DeMerchant, Ian', 2],
    ['dela Cruz, Ian Niel & Ohara, Masahiro', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);