function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abarca-Ávila, Mónica Mariel & Herrera-Dorantes, María Teresa', 3],
    ['Araújo-Silva, Catarina De L. & Larsen, Kim', 3],
    ['Bamber, Roger N & Bird, Graham & Błażewicz-Paszkowycz, Magdalena', 2],
    ['Bamber, Roger N & Chatterjee, Tapas & Marshall, David J', 1],
    ['Bamber, Roger N.', 8],
    ['Bochert, Ralf', 1],
    ['DRUMM, DAVID T. & HEARD, RICHARD W.', 55],
    ['Drumm, David T.', 3],
    ['Drumm, David T. & Heard, Richard W.', 6],
    ['Drumm, David T. & Morales-Núñez, Andrés G.', 1],
    ['Giachetti, Clara Belen & Roccatagliata, Daniel', 2],
    ['Padate, Vinay P. & Cubelio, Sherine Sonia', 1],
    ['Santos, Kátia Christol Dos & Santana, William', 3],
    ['Tzeng, You-Wei & Ma, Lin & Li, Xinzheng', 2],
    ['Wi, Jin Hee & Kang, Chang-Keun & Soh, Ho Young', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=93)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);