function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fernández, Mercedes & Fernicola, Juan C. & Cerdeño, Esperanza', 6],
    ['Fernández, Mercedes & Fernicola, Juan Carlos', 44],
    ['Hitz, Ralph B. & Flynn, John J. & Wyss, André R.', 2],
    ['Kramarz, Alejandro & Bond, Mariano & Arnal, Michelle', 1],
    ['MacPhee, R. D. E.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=55)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);