function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Palomino-Alvarez, Lilian & Moreira Rocha, Rosana', 1],
    ['Exbodi, Françoise Monniot', 1],
    ['Herdman, William Abbott', 1],
    ['Kott, Patricia', 3],
    ['Lambert, Gretchen', 2],
    ['Lambert, Gretchen & Lee, Serina Siew-Chen & Teo, Serena Lay-Ming', 1],
    ['Maggioni, Tamara & Taverna, Anabela & Reyna, Paola B.', 2],
    ['Monniot, Claude', 2],
    ['Monniot, Françoise', 2],
    ['Monniot, Françoise & Dettai, Agnès', 3],
    ['Monniot, Françoise & Monniot, Claude', 3],
    ['Primo, Carmen & Vázquez, Elsa', 1],
    ['Pyo, Jooyeon & Lee, Taekjun & Shin, Sook', 1],
    ['Sanamyan, K. E. & Sanamyan, N. P.', 2],
    ['Sanamyan, Karen & Sanamyan, Nadya', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    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);