function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 2],
    ['Bleeker, Pieter', 3],
    ['Chabanaud, P.', 1],
    ['Chu, K. - Y. & Tsai, C. - F.', 1],
    ['Fowler, Henry Weed & Bean, Barton A.', 2],
    ['Goode, G. B. & Bean, T. H.', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Jordan, David Starr & Seale, A.', 2],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 1],
    ['Maliatsky, S.', 1],
    ['Poey, F.', 1],
    ['Smith-Vaniz, William F. & Jelks, Howard L.', 2],
    ['Storey, M. H.', 1],
    ['Weber, M. & de Beaufort, L. F.', 1],
    ['Whitley, Gilbert P.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);