function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['C. Rabeling & T. R. Schultz & M. Bacci Jr & M. Bollazzi', 1],
    ['Christoph Germann', 1],
    ['DE ALBUQUERQUE, EMÍLIA ZOPPAS & PRADO, LÍVIA PIRES DO', 5],
    ['De Souza, D. J. & Soares, I. M. F. & Della Lucia, T. M. C.', 1],
    ['Forel, A.', 2],
    ['Neal A. Weber, University of North Dakota', 3],
    ['Rabeling, C. & Messer, S. & Lacau, S. & do Nascimento, I. C.', 1],
    ['Santschi, F.', 3],
    ['Shattuck, Steve & Cover, Stefan', 1],
    ['Ward, P. S.', 3],
    ['Wild, A. L.', 25],
    ['Wild, Alexander L.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    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);