function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boxshall, Geoff', 3],
    ['Kakui, Keiichi & Uyeno, Daisuke', 1],
    ['Soler-Jimenez, Lilia C. & Morales-Serna, F. Neptali', 2],
    ['Suárez-Morales, Eduardo & Gasca, R.', 1],
    ['Tang, Danny & Maran, B. A. Venmathi & Matsumoto, Yousuke', 1],
    ['Venmathi Maran, B. A. & Ohtsuka, Susumu & Shang, Xu', 1],
    ['Wilson, Charles Branch', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);