function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aaron, S. Frank', 1],
    ['Banks, Nathan', 3],
    ['Borges, Paulo A. V. & Gaspar, Clara', 4],
    ['Georgiev, D. & Ruchin, A. B.', 3],
    ['Lienhard, Charles & Mifsud, David', 3],
    ['Neto, Alberto Moreira da Silva & Aldrete, Alfonso Neri García', 8],
    ['Ostrovsky, A. M.', 6],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Schmidt, Evan R. & New, Tim R.', 12],
    ['Silva-Neto, Alberto Moreira da & Aldrete, Alfonso Neri García', 1],
    ['Smithers, C. N.', 3],
    ['Smithers, Courtenay Neville', 5],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Tillyard, Robin John', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    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);