function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bothma, Johannes C & Matthee, Sonja & Matthee, Conrad A', 1],
    ['Durden, Lance A. & Robinson, Chase & Cook, Joseph A.', 16],
    ['Enderlein, Günther', 1],
    ['Howell, Lindsey & Jelden, Katelyn & Rácz, Elizabeth', 2],
    ['Kazim, Abdul-Rahman & Houssaini, Jamal & Tappe, Dennis', 18],
    ['Kitrytė, Neringa & Baltrūnaitė, Laima', 8],
    ['Palma, Ricardo L. & Peck, Stewart B.', 1],
    ['Reeves, Will K. & Durden, Lance A. & Ritzi, Christopher M.', 6],
    ['Reeves, Will K. & Durden, Lance A. & Wrenn, William J.', 5],
    ['Sánchez-Montes, Sokani & Guzmán-Cornejo, Carmen', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=63)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);