function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albornoz-Garzón, Juan G. & Conde-Saldaña, Cristhian C.', 1],
    ['Bernt, Maxwell J. & Crampton, William G. R.', 2],
    ['Carlos David de Santana', 20],
    ['Carlos David de Santana & Javier A. Maldonado-Ocampo', 24],
    ['Carlos David de Santana & William G. R. Crampton', 11],
    ['Evans, Kory M. & Crampton, William G. R. & Albert, James S.', 9],
    ['Ferraris, Carl J. & Jr & Santana, Carlos David de', 72],
    ['Fowler, Henry Weed', 2],
    ['Kang, Ning & Hu, Hongying & Guo, Shuhan & Luo, Shungang', 2],
    ['Lundberg, John G. & Cox Fernandes, C. & Campos-da-Paz, R.', 2],
    ['Maxwell J. Bernt & James S. Albert', 6],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 6],
    ['Santana, Carlos David De & Vari, Richard P.', 34],
    ['Steindachner, F.', 3],
    ['W. Peters', 2],
    ['Other (21)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=217)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);