function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Böhlke, James E. & Böhlke, Eugenia B.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['David G. Smith', 1],
    ['Ho, Hsuan-Ching & Smith, David G. & Mccosker, John E.', 5],
    ['Kaup, Johann Jakob', 1],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 1],
    ['Prokofiev, Artem M.', 1],
    ['Smith, David G.', 2],
    ['Smith, David G. & Bogorodsky, Sergey V. & Mal, Ahmad O.', 2],
    ['Smith-Vaniz, William F. & Jelks, Howard L.', 2],
    ['Tudu, Prasad C.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);