function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Camper, Jeffrey D. & Torres-Carvajal, Omar & Ron, Santiago R.', 2],
    ['Conrad, J. L.', 1],
    ['Ribeiro-Júnior, Marco A.', 3],
    ['Torres-Carvajal, Omar & Etheridge, Richard & Queiroz, Kevin De', 16],
    ['Torres-Carvajal, Omar & Venegas, Pablo J. & de Queiroz, Kevin', 3],
    ['Torres-Carvajal, Omar & de Queiroz, Kevin & Etheridge, Richard', 3],
    ['Uchoa, Lucas Rafael & Delfim, Fagner Ribeiro', 1],
    ['Venegas, Pablo J. & Chavez, German & Garcia-Ayachi, Luis A.', 1],
    ['Venegas, Pablo J. & Duran, Vilma & Landauro, Caroll Z.', 1],
    ['Venegas, Pablo J. & Torres-Carvajal, Omar & Duran, Vilma', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);