function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Azuelo, Andrea G. & Tan, Benito C. & Shevock, James R.', 1],
    ['Castro-Vargas, Fernando & Cruz-Mendivelso, Yerson', 1],
    ['Gomes do Nascimento, Géssica Maria', 3],
    ['Maier, Eva & Price, Michelle J.', 1],
    ['Oliveira, Regigláucia Rodrigues de', 2],
    ['Osman, Imen Ben & Hugonnot, Vincent & Muller, Serge D.', 1],
    ['Pantović, Jovana & Veljić, Milan & Grdović, Svetlana', 1],
    ['Pioli, Achille', 2],
    ['Price, Michelle J.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);