function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['D\'Acoz, Cédric D\'Udekem & Degrave, Sammy', 1],
    ['Swanepoel, Wessel & Dexter, Kyle G. & Loiseau, Oriane', 1],
    ['Swanepoel, Wessel & Manzitto-Tripp, Erin A.', 2],
    ['Swanepoel, Wessel & Manzitto-Tripp, Erin A. & Dexter, Kyle G.', 2],
    ['Swanepoel, Wessel & Nanyeni, Leevi & Van Wyk, Abraham E.', 1],
    ['Swanepoel, Wessel & Van Wyk, Abraham E.', 2],
    ['Vereshchaka, Alexander L. & Lunina, Anastasia A.', 3],
    ['Wicksten, Mary K.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);