function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Castro, Peter', 1],
    ['Chambers, V. T.', 1],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['Devi, S. Suvarna & Mendoza, Jose C. E. & Ravinesh, R.', 2],
    ['Koh, S. K. & Ng, Peter K. L.', 8],
    ['Latreille, Pierre André', 1],
    ['Mantelatto, Fernando L. & Tamburus, Ana Francisca', 1],
    ['McIntosh, William C.', 1],
    ['Naderloo, Reza & Türkay, Michael', 1],
    ['Ortiz, Luis Hernández Georgina Ramírez & Reyes-Bonilla, Héctor', 1],
    ['Parasram, Nadeshinie & Santana, William & Vallès, Henri', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);